taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
03F9879B324CFF88FC5CFC8FFC767C7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330464/files/figure.png	https://doi.org/10.5281/zenodo.5330464	Figure 1. The location of the town of Hastings within the county of East Sussex in the UK. Quarries (Q) and location names indicate sites that are known to have yielded Iguanodon-like ornithopod remains (most of which were collected by either Samuel H. Beckles or Charles Dawson). The ambiguity surrounding the location of ‘Hollington Quarry’ is genuine and reflects inconsistencies and vagueness introduced (probably by Dawson) when the documentation of these collections was being assembled in the late 1880s. Abbreviation: IoW, Isle of Wight.	Figure 1. The location of the town of Hastings within the county of East Sussex in the UK. Quarries (Q) and location names indicate sites that are known to have yielded Iguanodon-like ornithopod remains (most of which were collected by either Samuel H. Beckles or Charles Dawson). The ambiguity surrounding the location of ‘Hollington Quarry’ is genuine and reflects inconsistencies and vagueness introduced (probably by Dawson) when the documentation of these collections was being assembled in the late 1880s. Abbreviation: IoW, Isle of Wight.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B324CFF88FC5CFC8FFC767C7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330468/files/figure.png	https://doi.org/10.5281/zenodo.5330468	Figure 3. Comparative ilia. A, Iguanodon (= Hypselospinus) fittoni NHMUK R1635, holotype in lateral view; B, NHMUK R1635 in medial view; C, Iguanodon (= Barilium) dawsoni NHMUK R802, holotype in lateral view; D, NHMUK R802, holotype in medial view. Abbreviations:?brf, brevis fossa non-existent (the area forming a smoothly curved overhang); brf, brevis fossa; lr, lateral ridge that demarcates the brevis fossa;?mr, medial ridge (much reduced); mr, medial ridge very prominent and forming an overhanging ledge; prp, preacetabular process; srf, sacral rib facet (prominent medially and clearly visible laterally). Scale bars = 10 cm.	Figure 3. Comparative ilia. A, Iguanodon (= Hypselospinus) fittoni NHMUK R1635, holotype in lateral view; B, NHMUK R1635 in medial view; C, Iguanodon (= Barilium) dawsoni NHMUK R802, holotype in lateral view; D, NHMUK R802, holotype in medial view. Abbreviations:?brf, brevis fossa non-existent (the area forming a smoothly curved overhang); brf, brevis fossa; lr, lateral ridge that demarcates the brevis fossa;?mr, medial ridge (much reduced); mr, medial ridge very prominent and forming an overhanging ledge; prp, preacetabular process; srf, sacral rib facet (prominent medially and clearly visible laterally). Scale bars = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B324CFF88FC5CFC8FFC767C7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330486/files/figure.png	https://doi.org/10.5281/zenodo.5330486	Figure 9. Iguanodon (= Hypselospinus) fittoni. Holotype NHMUK R1635. Ischium (right) proximal end, eroded. Abbreviations: ac, acetabular margin; obt, obturator process (eroded base). Scale bar = 10 cm.	Figure 9. Iguanodon (= Hypselospinus) fittoni. Holotype NHMUK R1635. Ischium (right) proximal end, eroded. Abbreviations: ac, acetabular margin; obt, obturator process (eroded base). Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B324CFF88FC5CFC8FFC767C7D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330472/files/figure.png	https://doi.org/10.5281/zenodo.5330472	Figure 4. Iguanodon hollingtoniensis (= Hypselospinus fittoni) holotype. NHMUK R1148. A, femur (right) nearly complete but crushed, as illustrated by Lydekker (1890a) (a, articular head; b, anterior trochanter; c, fourth trochanter, with exaggerated pendant tip; d, lateral distal condyle; e, medial distal condyle); B, C, the original specimen as preserved (May 2011) in dorsal and ventral views, respectively – the ventral view reveals the extent of longitudinal crushing postmortem. Abbreviations: 4t, fourth trochanter; at, anterior (lesser) trochanter; cr, crushing of the dorsal part of the medial condyle; icg, anterior intercondylar groove. Scale bar = 10 cm.	Figure 4. Iguanodon hollingtoniensis (= Hypselospinus fittoni) holotype. NHMUK R1148. A, femur (right) nearly complete but crushed, as illustrated by Lydekker (1890a) (a, articular head; b, anterior trochanter; c, fourth trochanter, with exaggerated pendant tip; d, lateral distal condyle; e, medial distal condyle); B, C, the original specimen as preserved (May 2011) in dorsal and ventral views, respectively – the ventral view reveals the extent of longitudinal crushing postmortem. Abbreviations: 4t, fourth trochanter; at, anterior (lesser) trochanter; cr, crushing of the dorsal part of the medial condyle; icg, anterior intercondylar groove. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3247FF9EFF60F9C4FCC17F6B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330468/files/figure.png	https://doi.org/10.5281/zenodo.5330468	Figure 3. Comparative ilia. A, Iguanodon (= Hypselospinus) fittoni NHMUK R1635, holotype in lateral view; B, NHMUK R1635 in medial view; C, Iguanodon (= Barilium) dawsoni NHMUK R802, holotype in lateral view; D, NHMUK R802, holotype in medial view. Abbreviations:?brf, brevis fossa non-existent (the area forming a smoothly curved overhang); brf, brevis fossa; lr, lateral ridge that demarcates the brevis fossa;?mr, medial ridge (much reduced); mr, medial ridge very prominent and forming an overhanging ledge; prp, preacetabular process; srf, sacral rib facet (prominent medially and clearly visible laterally). Scale bars = 10 cm.	Figure 3. Comparative ilia. A, Iguanodon (= Hypselospinus) fittoni NHMUK R1635, holotype in lateral view; B, NHMUK R1635 in medial view; C, Iguanodon (= Barilium) dawsoni NHMUK R802, holotype in lateral view; D, NHMUK R802, holotype in medial view. Abbreviations:?brf, brevis fossa non-existent (the area forming a smoothly curved overhang); brf, brevis fossa; lr, lateral ridge that demarcates the brevis fossa;?mr, medial ridge (much reduced); mr, medial ridge very prominent and forming an overhanging ledge; prp, preacetabular process; srf, sacral rib facet (prominent medially and clearly visible laterally). Scale bars = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3247FF9EFF60F9C4FCC17F6B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330472/files/figure.png	https://doi.org/10.5281/zenodo.5330472	Figure 4. Iguanodon hollingtoniensis (= Hypselospinus fittoni) holotype. NHMUK R1148. A, femur (right) nearly complete but crushed, as illustrated by Lydekker (1890a) (a, articular head; b, anterior trochanter; c, fourth trochanter, with exaggerated pendant tip; d, lateral distal condyle; e, medial distal condyle); B, C, the original specimen as preserved (May 2011) in dorsal and ventral views, respectively – the ventral view reveals the extent of longitudinal crushing postmortem. Abbreviations: 4t, fourth trochanter; at, anterior (lesser) trochanter; cr, crushing of the dorsal part of the medial condyle; icg, anterior intercondylar groove. Scale bar = 10 cm.	Figure 4. Iguanodon hollingtoniensis (= Hypselospinus fittoni) holotype. NHMUK R1148. A, femur (right) nearly complete but crushed, as illustrated by Lydekker (1890a) (a, articular head; b, anterior trochanter; c, fourth trochanter, with exaggerated pendant tip; d, lateral distal condyle; e, medial distal condyle); B, C, the original specimen as preserved (May 2011) in dorsal and ventral views, respectively – the ventral view reveals the extent of longitudinal crushing postmortem. Abbreviations: 4t, fourth trochanter; at, anterior (lesser) trochanter; cr, crushing of the dorsal part of the medial condyle; icg, anterior intercondylar groove. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3247FF9EFF60F9C4FCC17F6B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330474/files/figure.png	https://doi.org/10.5281/zenodo.5330474	Figure 5. Iguanodon (= Hypselospinus) fittoni. Holotype. NHMUK R1635. The ilium as illustrated in Lydekker (1890a: fig. 1C). A, lateral; B, ventral portion of the postacetabular process. The original illustration indicates the existence of a separate anterior portion of the preacetabular process; this latter part has not been found in the collections of the NHMUK since it was first looked for in 1974. C, teeth with the same registered number as the holotype and, although not mentioned before, presumably associated: 1. The stump of a heavily worn dentary tooth; 2, 3. Worn maxillary crowns in labial view. Abbreviations: brf, brevis fossa; ch, channel for replacement crown; p, primary ridge; prp, preacetabular process; r, subsidiary ridges. Scale bar = 10 mm.	Figure 5. Iguanodon (= Hypselospinus) fittoni. Holotype. NHMUK R1635. The ilium as illustrated in Lydekker (1890a: fig. 1C). A, lateral; B, ventral portion of the postacetabular process. The original illustration indicates the existence of a separate anterior portion of the preacetabular process; this latter part has not been found in the collections of the NHMUK since it was first looked for in 1974. C, teeth with the same registered number as the holotype and, although not mentioned before, presumably associated: 1. The stump of a heavily worn dentary tooth; 2, 3. Worn maxillary crowns in labial view. Abbreviations: brf, brevis fossa; ch, channel for replacement crown; p, primary ridge; prp, preacetabular process; r, subsidiary ridges. Scale bar = 10 mm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3247FF9EFF60F9C4FCC17F6B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330480/files/figure.png	https://doi.org/10.5281/zenodo.5330480	Figure 7. Iguanodon (= Hypselospinus) fittoni. Holotype NHMUK R1635. Partial sacrum. A, dorsal; B, lateral; C, ventral. Abbreviations: k, ventral keel, ln, aperture for lateral spinal nerve; na, broken base of the neural arch positioned suprarather than intervertebrally on the last sacral centrum; sr, sacral rib remnants. Scale bar = 10 cm.	Figure 7. Iguanodon (= Hypselospinus) fittoni. Holotype NHMUK R1635. Partial sacrum. A, dorsal; B, lateral; C, ventral. Abbreviations: k, ventral keel, ln, aperture for lateral spinal nerve; na, broken base of the neural arch positioned suprarather than intervertebrally on the last sacral centrum; sr, sacral rib remnants. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3247FF9EFF60F9C4FCC17F6B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330482/files/figure.png	https://doi.org/10.5281/zenodo.5330482	Figure 8. Iguanodon (= Hypselospinus) fittoni. Holotype NHMUK R1635. Anterior-middle caudal centrum in: A, anteri- or; B, lateral; C, posterior views. Abbreviations: cf, chevron facet; cr, caudal rib (eroded basal portion). Scale bar = 10 cm.	Figure 8. Iguanodon (= Hypselospinus) fittoni. Holotype NHMUK R1635. Anterior-middle caudal centrum in: A, anteri- or; B, lateral; C, posterior views. Abbreviations: cf, chevron facet; cr, caudal rib (eroded basal portion). Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3247FF9EFF60F9C4FCC17F6B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330486/files/figure.png	https://doi.org/10.5281/zenodo.5330486	Figure 9. Iguanodon (= Hypselospinus) fittoni. Holotype NHMUK R1635. Ischium (right) proximal end, eroded. Abbreviations: ac, acetabular margin; obt, obturator process (eroded base). Scale bar = 10 cm.	Figure 9. Iguanodon (= Hypselospinus) fittoni. Holotype NHMUK R1635. Ischium (right) proximal end, eroded. Abbreviations: ac, acetabular margin; obt, obturator process (eroded base). Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3247FF9EFF60F9C4FCC17F6B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330488/files/figure.png	https://doi.org/10.5281/zenodo.5330488	Figure 10. Hypselospinus fittoni. Holotype NHMUK R1635. Ilium illustrated in A, lateral; B, dorsal; C, posterior; D, medial views. Abbreviations: brf, brevis fossa; ip, ischiadic peduncle with laterally stepped surface; lr, lateral ridge that demarcates the brevis fossa; pth, probable pathology; srf, sacral rib facets; sy, scarred area for attachment of the sacral yoke. Shading: cross-hatching indicates broken surfaces. Scale bar = 10 cm.	Figure 10. Hypselospinus fittoni. Holotype NHMUK R1635. Ilium illustrated in A, lateral; B, dorsal; C, posterior; D, medial views. Abbreviations: brf, brevis fossa; ip, ischiadic peduncle with laterally stepped surface; lr, lateral ridge that demarcates the brevis fossa; pth, probable pathology; srf, sacral rib facets; sy, scarred area for attachment of the sacral yoke. Shading: cross-hatching indicates broken surfaces. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3247FF9EFF60F9C4FCC17F6B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330464/files/figure.png	https://doi.org/10.5281/zenodo.5330464	Figure 1. The location of the town of Hastings within the county of East Sussex in the UK. Quarries (Q) and location names indicate sites that are known to have yielded Iguanodon-like ornithopod remains (most of which were collected by either Samuel H. Beckles or Charles Dawson). The ambiguity surrounding the location of ‘Hollington Quarry’ is genuine and reflects inconsistencies and vagueness introduced (probably by Dawson) when the documentation of these collections was being assembled in the late 1880s. Abbreviation: IoW, Isle of Wight.	Figure 1. The location of the town of Hastings within the county of East Sussex in the UK. Quarries (Q) and location names indicate sites that are known to have yielded Iguanodon-like ornithopod remains (most of which were collected by either Samuel H. Beckles or Charles Dawson). The ambiguity surrounding the location of ‘Hollington Quarry’ is genuine and reflects inconsistencies and vagueness introduced (probably by Dawson) when the documentation of these collections was being assembled in the late 1880s. Abbreviation: IoW, Isle of Wight.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3247FF9EFF60F9C4FCC17F6B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330466/files/figure.png	https://doi.org/10.5281/zenodo.5330466	Figure 2. Stratigraphy of the Wealden of southern England. Stratigraphical chart based upon Batten (2011: textfig. 2.1) with the approximate stratigraphical distribution of the principal large-bodied ornithopod taxa indicated using solid vertical bars. Abbreviations: Fm, Formation; GC Fm, Grinstead Clay Formation; Lower Grnsd, Lower Greensand; L.T.W. Sand Fm, Lower Tunbridge Wells Sand Formation; U.T.W. Sand Fm, Upper Tunbridge Wells Sand Formation; B., Barilium; H., Hypselospinus; I., Iguanodon; M., Mantellisaurus.	Figure 2. Stratigraphy of the Wealden of southern England. Stratigraphical chart based upon Batten (2011: textfig. 2.1) with the approximate stratigraphical distribution of the principal large-bodied ornithopod taxa indicated using solid vertical bars. Abbreviations: Fm, Formation; GC Fm, Grinstead Clay Formation; Lower Grnsd, Lower Greensand; L.T.W. Sand Fm, Lower Tunbridge Wells Sand Formation; U.T.W. Sand Fm, Upper Tunbridge Wells Sand Formation; B., Barilium; H., Hypselospinus; I., Iguanodon; M., Mantellisaurus.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3247FF9EFF60F9C4FCC17F6B.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330548/files/figure.png	https://doi.org/10.5281/zenodo.5330548	Figure 46. Hypselospinus cf. fittoni. NHMUK R1834. Ilium (right, nearly complete). A, lateral; B, ventral view of postacetabular process; C, dorsal; D, medial. Abbreviations: ac, acetabulum; bl, abnormally truncated preacetabular process; brf, brevis fossa; fdm, flattened, narrow dorsal margin of the iliac blade; ip, ischiadic peduncle; lr, lateral ridge; mr, medial ridge; m.sc, blister-like strip of rugose tissue running parallel to the dorsal margin of the ilium; pp, pubic peduncle; prp, preacetabular process; th, dorsoventral thickening of the blister-like muscle scar. Scale bar = 10 cm.	Figure 46. Hypselospinus cf. fittoni. NHMUK R1834. Ilium (right, nearly complete). A, lateral; B, ventral view of postacetabular process; C, dorsal; D, medial. Abbreviations: ac, acetabulum; bl, abnormally truncated preacetabular process; brf, brevis fossa; fdm, flattened, narrow dorsal margin of the iliac blade; ip, ischiadic peduncle; lr, lateral ridge; mr, medial ridge; m.sc, blister-like strip of rugose tissue running parallel to the dorsal margin of the ilium; pp, pubic peduncle; prp, preacetabular process; th, dorsoventral thickening of the blister-like muscle scar. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330464/files/figure.png	https://doi.org/10.5281/zenodo.5330464	Figure 1. The location of the town of Hastings within the county of East Sussex in the UK. Quarries (Q) and location names indicate sites that are known to have yielded Iguanodon-like ornithopod remains (most of which were collected by either Samuel H. Beckles or Charles Dawson). The ambiguity surrounding the location of ‘Hollington Quarry’ is genuine and reflects inconsistencies and vagueness introduced (probably by Dawson) when the documentation of these collections was being assembled in the late 1880s. Abbreviation: IoW, Isle of Wight.	Figure 1. The location of the town of Hastings within the county of East Sussex in the UK. Quarries (Q) and location names indicate sites that are known to have yielded Iguanodon-like ornithopod remains (most of which were collected by either Samuel H. Beckles or Charles Dawson). The ambiguity surrounding the location of ‘Hollington Quarry’ is genuine and reflects inconsistencies and vagueness introduced (probably by Dawson) when the documentation of these collections was being assembled in the late 1880s. Abbreviation: IoW, Isle of Wight.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330492/files/figure.png	https://doi.org/10.5281/zenodo.5330492	Figure 11. Hypselospinus cf. fittoni (holotype: Iguanodon hollingtoniensis). NHMUK R1148. A−D, left metatarsal (mt) III in dorsal, ventral, proximal, and distal views, respectively; E−H, left mt II (R1629) in dorsal, ventral, proximal, and distal views, respectively; I−N, proximal pedal phalanx (?I−IV) in lateral, medial, dorsal, ventral, distal, and proximal views, respectively. Abbreviations: lig, scarred surfaces for ligament attachment; sc, scarred surface; tab, flap-like tab on the dorsolateral margin of mt II; tab.sc, corresponding scarred and indented surface on the medial edge of the shaft of mt III for the attachment of the tab on mt II. Shading: even tone, proximal metatarsal surface; hatching, broken surfaces. Scale bar = 10 cm.	Figure 11. Hypselospinus cf. fittoni (holotype: Iguanodon hollingtoniensis). NHMUK R1148. A−D, left metatarsal (mt) III in dorsal, ventral, proximal, and distal views, respectively; E−H, left mt II (R1629) in dorsal, ventral, proximal, and distal views, respectively; I−N, proximal pedal phalanx (?I−IV) in lateral, medial, dorsal, ventral, distal, and proximal views, respectively. Abbreviations: lig, scarred surfaces for ligament attachment; sc, scarred surface; tab, flap-like tab on the dorsolateral margin of mt II; tab.sc, corresponding scarred and indented surface on the medial edge of the shaft of mt III for the attachment of the tab on mt II. Shading: even tone, proximal metatarsal surface; hatching, broken surfaces. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330506/files/figure.png	https://doi.org/10.5281/zenodo.5330506	Figure 17. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148. (R1629). Ischium proximal portion (left). A, A1, lateral view; B, B1, medial view. Abbreviations: m.sc, muscle scars on lateral surface of shaft; obt, broken base of the obturator process; ri, prominent curved ridge that extends from the base of the obturator process to the posterior margin of the shaft distally. Hatching indicates broken and/or filled surfaces. Scale bar = 10 cm.	Figure 17. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148. (R1629). Ischium proximal portion (left). A, A1, lateral view; B, B1, medial view. Abbreviations: m.sc, muscle scars on lateral surface of shaft; obt, broken base of the obturator process; ri, prominent curved ridge that extends from the base of the obturator process to the posterior margin of the shaft distally. Hatching indicates broken and/or filled surfaces. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5369666/files/figure.png	https://doi.org/10.5281/zenodo.5369666	Figure 31. Hypselospinus cf. fittoni. NHMUK R811. A, incomplete pubis partial (right, this is a reversed image) in lateral view. B, ischium complete (left) in lateral view. Abbreviations: ac, acetabular margin; ap, anterior blade of the pubis; ib, ischial ‘boot’; il.p, iliac peduncle; obt, obturator process; obt.c, obturator channel; pp, pubic peduncle; p.pu, posterior ramus of the pubis. Scale bar = 10 cm.	Figure 31. Hypselospinus cf. fittoni. NHMUK R811. A, incomplete pubis partial (right, this is a reversed image) in lateral view. B, ischium complete (left) in lateral view. Abbreviations: ac, acetabular margin; ap, anterior blade of the pubis; ib, ischial ‘boot’; il.p, iliac peduncle; obt, obturator process; obt.c, obturator channel; pp, pubic peduncle; p.pu, posterior ramus of the pubis. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5369664/files/figure.png	https://doi.org/10.5281/zenodo.5369664	Figure 30. Hypselospinus cf. fittoni. NHMUK R811. A, sacrum in ventral view. B, C, NHMUK R811b. The left ilium in lateral and medial views, respectively (corrected from Norman, 2010). Note: the two broken and laterally flattened ilium portions are positioned slightly too close together. Abbreviations: ip, ischiadic peduncle (crushed remains of); k, ventral midline keel; mr, medial ridge (poorly preserved); m.sc, blister-like strip of muscle scarring on the lateral surface beneath the dorsal edge; s1, 5, numbered sacral vertebrae; sd, sacrodorsal centrum; sr, sacral rib (base of). Scale bars = 10 cm.	Figure 30. Hypselospinus cf. fittoni. NHMUK R811. A, sacrum in ventral view. B, C, NHMUK R811b. The left ilium in lateral and medial views, respectively (corrected from Norman, 2010). Note: the two broken and laterally flattened ilium portions are positioned slightly too close together. Abbreviations: ip, ischiadic peduncle (crushed remains of); k, ventral midline keel; mr, medial ridge (poorly preserved); m.sc, blister-like strip of muscle scarring on the lateral surface beneath the dorsal edge; s1, 5, numbered sacral vertebrae; sd, sacrodorsal centrum; sr, sacral rib (base of). Scale bars = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330502/files/figure.png	https://doi.org/10.5281/zenodo.5330502	Figure 15. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148 (R1629). Pollex (right). A, medial; B, lateral view; C−F, interpretative sketches of the original specimen in medial, posterior, anterior, and lateral views. Abbreviation: c.gr, claw groove running along the posterior edge (a less well-defined and irregular groove may be present on the anterior edge). Hatching indicates broken bone. Scale bar = 10 cm.	Figure 15. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148 (R1629). Pollex (right). A, medial; B, lateral view; C−F, interpretative sketches of the original specimen in medial, posterior, anterior, and lateral views. Abbreviation: c.gr, claw groove running along the posterior edge (a less well-defined and irregular groove may be present on the anterior edge). Hatching indicates broken bone. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330494/files/figure.png	https://doi.org/10.5281/zenodo.5330494	Figure 12. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148. A, B, dorsal centra as preserved in lateral view. A1, centrum A illustrated and pseudo-articulated with a neural arch; A2, centrum and neural arch in ventral view; B1, similar pseudo-articulation and B2, ventral view of the same. Hatching indicates broken surfaces. Abbreviations: dia, diapophyseal facet; k, keel; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis. Scale bars = 10 cm.	Figure 12. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148. A, B, dorsal centra as preserved in lateral view. A1, centrum A illustrated and pseudo-articulated with a neural arch; A2, centrum and neural arch in ventral view; B1, similar pseudo-articulation and B2, ventral view of the same. Hatching indicates broken surfaces. Abbreviations: dia, diapophyseal facet; k, keel; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis. Scale bars = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330466/files/figure.png	https://doi.org/10.5281/zenodo.5330466	Figure 2. Stratigraphy of the Wealden of southern England. Stratigraphical chart based upon Batten (2011: textfig. 2.1) with the approximate stratigraphical distribution of the principal large-bodied ornithopod taxa indicated using solid vertical bars. Abbreviations: Fm, Formation; GC Fm, Grinstead Clay Formation; Lower Grnsd, Lower Greensand; L.T.W. Sand Fm, Lower Tunbridge Wells Sand Formation; U.T.W. Sand Fm, Upper Tunbridge Wells Sand Formation; B., Barilium; H., Hypselospinus; I., Iguanodon; M., Mantellisaurus.	Figure 2. Stratigraphy of the Wealden of southern England. Stratigraphical chart based upon Batten (2011: textfig. 2.1) with the approximate stratigraphical distribution of the principal large-bodied ornithopod taxa indicated using solid vertical bars. Abbreviations: Fm, Formation; GC Fm, Grinstead Clay Formation; Lower Grnsd, Lower Greensand; L.T.W. Sand Fm, Lower Tunbridge Wells Sand Formation; U.T.W. Sand Fm, Upper Tunbridge Wells Sand Formation; B., Barilium; H., Hypselospinus; I., Iguanodon; M., Mantellisaurus.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330472/files/figure.png	https://doi.org/10.5281/zenodo.5330472	Figure 4. Iguanodon hollingtoniensis (= Hypselospinus fittoni) holotype. NHMUK R1148. A, femur (right) nearly complete but crushed, as illustrated by Lydekker (1890a) (a, articular head; b, anterior trochanter; c, fourth trochanter, with exaggerated pendant tip; d, lateral distal condyle; e, medial distal condyle); B, C, the original specimen as preserved (May 2011) in dorsal and ventral views, respectively – the ventral view reveals the extent of longitudinal crushing postmortem. Abbreviations: 4t, fourth trochanter; at, anterior (lesser) trochanter; cr, crushing of the dorsal part of the medial condyle; icg, anterior intercondylar groove. Scale bar = 10 cm.	Figure 4. Iguanodon hollingtoniensis (= Hypselospinus fittoni) holotype. NHMUK R1148. A, femur (right) nearly complete but crushed, as illustrated by Lydekker (1890a) (a, articular head; b, anterior trochanter; c, fourth trochanter, with exaggerated pendant tip; d, lateral distal condyle; e, medial distal condyle); B, C, the original specimen as preserved (May 2011) in dorsal and ventral views, respectively – the ventral view reveals the extent of longitudinal crushing postmortem. Abbreviations: 4t, fourth trochanter; at, anterior (lesser) trochanter; cr, crushing of the dorsal part of the medial condyle; icg, anterior intercondylar groove. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330496/files/figure.png	https://doi.org/10.5281/zenodo.5330496	Figure 13. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148 (R1629). Scapula (left) missing distal end of blade and some damage proximally. A, A1, medial view; B, B1, lateral view. Abbreviations: ar, acromial ridge; co.s, coracoid suture; gl, margin of humeral glenoid; hr, recess to accommodate the excursions of the lateral shoul- der of the humerus; m/l.sc, muscle and ligament scars on the surface of the scapula. Hatching, broken surfaces. Scale bar = 10 cm.	Figure 13. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148 (R1629). Scapula (left) missing distal end of blade and some damage proximally. A, A1, medial view; B, B1, lateral view. Abbreviations: ar, acromial ridge; co.s, coracoid suture; gl, margin of humeral glenoid; hr, recess to accommodate the excursions of the lateral shoul- der of the humerus; m/l.sc, muscle and ligament scars on the surface of the scapula. Hatching, broken surfaces. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330500/files/figure.png	https://doi.org/10.5281/zenodo.5330500	Figure 14. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148 (R1629). Radius and ulna (right). A, lateral view sketched from originals (ulna crushed and distorted); B, medial view; C, medial view sketched. Abbreviations: m.sc, muscle scars; RA, radius; ra.f, facet (partially preserved) for articulation of the proximal end of the radius; rug, prominent rugose striations on the mediodistal surface of the radius; UL, ulna; ul.f, ligament scarred ridge that was attached to the dorsal edge of the distal ulna. Scale bar = 10 cm.	Figure 14. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148 (R1629). Radius and ulna (right). A, lateral view sketched from originals (ulna crushed and distorted); B, medial view; C, medial view sketched. Abbreviations: m.sc, muscle scars; RA, radius; ra.f, facet (partially preserved) for articulation of the proximal end of the radius; rug, prominent rugose striations on the mediodistal surface of the radius; UL, ulna; ul.f, ligament scarred ridge that was attached to the dorsal edge of the distal ulna. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5369680/files/figure.png	https://doi.org/10.5281/zenodo.5369680	Figure 38. Hypselospinus cf. fittoni. NHMUK R1831 (R1832). Radius, ulna, pollex, and partial carpus (right) in lateral view. Abbreviations: II−IV, articular facets for metacarpals II−IV; abs, abscess-like depression; c.gr, ungual claw groove; ls, lateral shelf; MCB, carpometacarpal block; mf, medial flange; ol, olecranon process; PO, pollex; RA, radius; rf, facet for attachment of radius; uf, facet for attachment of the ulna; UL, ulna. Scale bar = 10 cm.	Figure 38. Hypselospinus cf. fittoni. NHMUK R1831 (R1832). Radius, ulna, pollex, and partial carpus (right) in lateral view. Abbreviations: II−IV, articular facets for metacarpals II−IV; abs, abscess-like depression; c.gr, ungual claw groove; ls, lateral shelf; MCB, carpometacarpal block; mf, medial flange; ol, olecranon process; PO, pollex; RA, radius; rf, facet for attachment of radius; uf, facet for attachment of the ulna; UL, ulna. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5369684/files/figure.png	https://doi.org/10.5281/zenodo.5369684	Figure 40. Hypselospinus cf. fittoni. NHMUK R1831 (R1832/ R1833). Reconstructed antebrachium and manus in lateral view. Abbreviations: mcI/mcIII, metacarpals; MCB, carpometacarpal block; ol, ossified ligaments; PO, pollex ungual; RA, radius; UL, ulna. Scale bar = 10 cm.	Figure 40. Hypselospinus cf. fittoni. NHMUK R1831 (R1832/ R1833). Reconstructed antebrachium and manus in lateral view. Abbreviations: mcI/mcIII, metacarpals; MCB, carpometacarpal block; ol, ossified ligaments; PO, pollex ungual; RA, radius; UL, ulna. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330504/files/figure.png	https://doi.org/10.5281/zenodo.5330504	Figure 16. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148. (R1629). Ilium (right preacetabular process). A, A1, lateral view; B, B1, medial view. Abbreviations: mr, medial ridge, m.sc, blister-like strip of muscle scarring on the lateral surface beneath the dorsal edge; srf, sacral rib facet. Hatching indicates broken bone. Scale bar = 10 cm.	Figure 16. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148. (R1629). Ilium (right preacetabular process). A, A1, lateral view; B, B1, medial view. Abbreviations: mr, medial ridge, m.sc, blister-like strip of muscle scarring on the lateral surface beneath the dorsal edge; srf, sacral rib facet. Hatching indicates broken bone. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330468/files/figure.png	https://doi.org/10.5281/zenodo.5330468	Figure 3. Comparative ilia. A, Iguanodon (= Hypselospinus) fittoni NHMUK R1635, holotype in lateral view; B, NHMUK R1635 in medial view; C, Iguanodon (= Barilium) dawsoni NHMUK R802, holotype in lateral view; D, NHMUK R802, holotype in medial view. Abbreviations:?brf, brevis fossa non-existent (the area forming a smoothly curved overhang); brf, brevis fossa; lr, lateral ridge that demarcates the brevis fossa;?mr, medial ridge (much reduced); mr, medial ridge very prominent and forming an overhanging ledge; prp, preacetabular process; srf, sacral rib facet (prominent medially and clearly visible laterally). Scale bars = 10 cm.	Figure 3. Comparative ilia. A, Iguanodon (= Hypselospinus) fittoni NHMUK R1635, holotype in lateral view; B, NHMUK R1635 in medial view; C, Iguanodon (= Barilium) dawsoni NHMUK R802, holotype in lateral view; D, NHMUK R802, holotype in medial view. Abbreviations:?brf, brevis fossa non-existent (the area forming a smoothly curved overhang); brf, brevis fossa; lr, lateral ridge that demarcates the brevis fossa;?mr, medial ridge (much reduced); mr, medial ridge very prominent and forming an overhanging ledge; prp, preacetabular process; srf, sacral rib facet (prominent medially and clearly visible laterally). Scale bars = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330486/files/figure.png	https://doi.org/10.5281/zenodo.5330486	Figure 9. Iguanodon (= Hypselospinus) fittoni. Holotype NHMUK R1635. Ischium (right) proximal end, eroded. Abbreviations: ac, acetabular margin; obt, obturator process (eroded base). Scale bar = 10 cm.	Figure 9. Iguanodon (= Hypselospinus) fittoni. Holotype NHMUK R1635. Ischium (right) proximal end, eroded. Abbreviations: ac, acetabular margin; obt, obturator process (eroded base). Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330510/files/figure.png	https://doi.org/10.5281/zenodo.5330510	Figure 18. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148. (R1629). Femur (left). A, anteromedial view; B, posterolateral view. Abbreviations: 4t, fourth trochanter; at, anterior (lesser) trochanter; br, broken base of the posterior lateral buttress; h, head of the femur; icg, anterior intercondylar groove; mb, medial posterior articular buttress; pig, posterior intercondylar groove. Crushing and plaster infill are clearly visible. Scale bar = 10 cm.	Figure 18. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148. (R1629). Femur (left). A, anteromedial view; B, posterolateral view. Abbreviations: 4t, fourth trochanter; at, anterior (lesser) trochanter; br, broken base of the posterior lateral buttress; h, head of the femur; icg, anterior intercondylar groove; mb, medial posterior articular buttress; pig, posterior intercondylar groove. Crushing and plaster infill are clearly visible. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330528/files/figure.png	https://doi.org/10.5281/zenodo.5330528	Figure 25. Hypselospinus cf. fittoni. NHMUK R604a. Dorsal ribs. A, right anterior; B, right middle; C, right middleposterior; D, right posterior. Abbreviations: ar, anterior curved ridge (for intercostal ligaments/muscles); cap, capitulum (rib head); n, neck of the rib; tub, tuberculum. Scale bar = 10 cm.	Figure 25. Hypselospinus cf. fittoni. NHMUK R604a. Dorsal ribs. A, right anterior; B, right middle; C, right middleposterior; D, right posterior. Abbreviations: ar, anterior curved ridge (for intercostal ligaments/muscles); cap, capitulum (rib head); n, neck of the rib; tub, tuberculum. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B325DFF97FF03FDE5FC4D7B3C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330512/files/figure.png	https://doi.org/10.5281/zenodo.5330512	Figure 19. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148 (R1632). Cervical vertebrae. A−C, anterior cervical vertebra in lateral, dorsal, and anterior views, respectively (NB: image A is of the right-hand side and has been reversed). D−F, more posterior cervicals, demonstrating the increasing depth of the centrum and the enlargement of the parapophyseal facet. Abbreviations: dia, diapophysis; k, thick midline keel; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis. Hatching indicates broken bone. Scale bar = 10 cm.	Figure 19. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148 (R1632). Cervical vertebrae. A−C, anterior cervical vertebra in lateral, dorsal, and anterior views, respectively (NB: image A is of the right-hand side and has been reversed). D−F, more posterior cervicals, demonstrating the increasing depth of the centrum and the enlargement of the parapophyseal facet. Abbreviations: dia, diapophysis; k, thick midline keel; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis. Hatching indicates broken bone. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330516/files/figure.png	https://doi.org/10.5281/zenodo.5330516	Figure 20. Hypselospinus cf. fittoni. NHMUK R604. First or second dorsal. A, lateral; B, anterior; C, ventral. Abbreviations: dia, diapophysis; k, midline keel; ncs, neurocentral suture; ns, neural spine; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis. Scale bar = 10 cm.	Figure 20. Hypselospinus cf. fittoni. NHMUK R604. First or second dorsal. A, lateral; B, anterior; C, ventral. Abbreviations: dia, diapophysis; k, midline keel; ncs, neurocentral suture; ns, neural spine; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330512/files/figure.png	https://doi.org/10.5281/zenodo.5330512	Figure 19. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148 (R1632). Cervical vertebrae. A−C, anterior cervical vertebra in lateral, dorsal, and anterior views, respectively (NB: image A is of the right-hand side and has been reversed). D−F, more posterior cervicals, demonstrating the increasing depth of the centrum and the enlargement of the parapophyseal facet. Abbreviations: dia, diapophysis; k, thick midline keel; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis. Hatching indicates broken bone. Scale bar = 10 cm.	Figure 19. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148 (R1632). Cervical vertebrae. A−C, anterior cervical vertebra in lateral, dorsal, and anterior views, respectively (NB: image A is of the right-hand side and has been reversed). D−F, more posterior cervicals, demonstrating the increasing depth of the centrum and the enlargement of the parapophyseal facet. Abbreviations: dia, diapophysis; k, thick midline keel; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis. Hatching indicates broken bone. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330518/files/figure.png	https://doi.org/10.5281/zenodo.5330518	Figure 21. Hypselospinus cf. fittoni. NHMUK R604. Third dorsal. A, A1, lateral (A is a reversed image of the right side); B, ventral; C, anterior. Abbreviations: dia, diapophysis; k, midline keel; ncs, neurocentral suture; ns, neural spine; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis; rs, rugose surface for ligamentous attachment of the neck of the rib. Scale bar = 10 cm.	Figure 21. Hypselospinus cf. fittoni. NHMUK R604. Third dorsal. A, A1, lateral (A is a reversed image of the right side); B, ventral; C, anterior. Abbreviations: dia, diapophysis; k, midline keel; ncs, neurocentral suture; ns, neural spine; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis; rs, rugose surface for ligamentous attachment of the neck of the rib. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330522/files/figure.png	https://doi.org/10.5281/zenodo.5330522	Figure 22. Hypselospinus cf. fittoni. NHMUK R604. Fourth dorsal. A, lateral; B, ventral; C, anterior. Abbreviations: dia, diapophysis; k, midline keel; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis; rs, rugose surface for ligamentous attachment of the neck of the rib. Scale bar = 10 cm.	Figure 22. Hypselospinus cf. fittoni. NHMUK R604. Fourth dorsal. A, lateral; B, ventral; C, anterior. Abbreviations: dia, diapophysis; k, midline keel; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis; rs, rugose surface for ligamentous attachment of the neck of the rib. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330524/files/figure.png	https://doi.org/10.5281/zenodo.5330524	Figure 23. Hypselospinus cf. fittoni. NHMUK R604. Middle dorsals (range: 7–10). A, (seventh) lateral; A1, ventral; A2, anterior. B, (ninth) lateral; B1, ventral; B2, anterior. Abbreviations: dia, diapophysis; k, midline keel; par, parapophysis; rs, rugose surface for ligamentous attachment of the neck of the rib. Scale bar = 10 cm.	Figure 23. Hypselospinus cf. fittoni. NHMUK R604. Middle dorsals (range: 7–10). A, (seventh) lateral; A1, ventral; A2, anterior. B, (ninth) lateral; B1, ventral; B2, anterior. Abbreviations: dia, diapophysis; k, midline keel; par, parapophysis; rs, rugose surface for ligamentous attachment of the neck of the rib. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330494/files/figure.png	https://doi.org/10.5281/zenodo.5330494	Figure 12. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148. A, B, dorsal centra as preserved in lateral view. A1, centrum A illustrated and pseudo-articulated with a neural arch; A2, centrum and neural arch in ventral view; B1, similar pseudo-articulation and B2, ventral view of the same. Hatching indicates broken surfaces. Abbreviations: dia, diapophyseal facet; k, keel; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis. Scale bars = 10 cm.	Figure 12. Hypselospinus cf. fittoni (Iguanodon hollingtoniensis holotype). NHMUK R1148. A, B, dorsal centra as preserved in lateral view. A1, centrum A illustrated and pseudo-articulated with a neural arch; A2, centrum and neural arch in ventral view; B1, similar pseudo-articulation and B2, ventral view of the same. Hatching indicates broken surfaces. Abbreviations: dia, diapophyseal facet; k, keel; par, parapophysis; poz, postzygapophysis; prz, prezygapophysis. Scale bars = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330526/files/figure.png	https://doi.org/10.5281/zenodo.5330526	Figure 24. Hypselospinus cf. fittoni. NHMUK R604. Posterior dorsals (range: 14–16). A, A1, A2, 14th dorsal in lateral, ventral, and dorsal views, respectively. B, B1, B2, 15th dorsal in lateral, ventral, and dorsal views, respectively. C, C1, C2, C3, 16th (last free dorsal) in lateral, anterior, ventral, and dorsal views, respectively. Abbreviations: dia, diapophysis; k, midline keel; par, parapophysis; prz, prezygapophysis. Scale bar = 10 cm.	Figure 24. Hypselospinus cf. fittoni. NHMUK R604. Posterior dorsals (range: 14–16). A, A1, A2, 14th dorsal in lateral, ventral, and dorsal views, respectively. B, B1, B2, 15th dorsal in lateral, ventral, and dorsal views, respectively. C, C1, C2, C3, 16th (last free dorsal) in lateral, anterior, ventral, and dorsal views, respectively. Abbreviations: dia, diapophysis; k, midline keel; par, parapophysis; prz, prezygapophysis. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330466/files/figure.png	https://doi.org/10.5281/zenodo.5330466	Figure 2. Stratigraphy of the Wealden of southern England. Stratigraphical chart based upon Batten (2011: textfig. 2.1) with the approximate stratigraphical distribution of the principal large-bodied ornithopod taxa indicated using solid vertical bars. Abbreviations: Fm, Formation; GC Fm, Grinstead Clay Formation; Lower Grnsd, Lower Greensand; L.T.W. Sand Fm, Lower Tunbridge Wells Sand Formation; U.T.W. Sand Fm, Upper Tunbridge Wells Sand Formation; B., Barilium; H., Hypselospinus; I., Iguanodon; M., Mantellisaurus.	Figure 2. Stratigraphy of the Wealden of southern England. Stratigraphical chart based upon Batten (2011: textfig. 2.1) with the approximate stratigraphical distribution of the principal large-bodied ornithopod taxa indicated using solid vertical bars. Abbreviations: Fm, Formation; GC Fm, Grinstead Clay Formation; Lower Grnsd, Lower Greensand; L.T.W. Sand Fm, Lower Tunbridge Wells Sand Formation; U.T.W. Sand Fm, Upper Tunbridge Wells Sand Formation; B., Barilium; H., Hypselospinus; I., Iguanodon; M., Mantellisaurus.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330528/files/figure.png	https://doi.org/10.5281/zenodo.5330528	Figure 25. Hypselospinus cf. fittoni. NHMUK R604a. Dorsal ribs. A, right anterior; B, right middle; C, right middleposterior; D, right posterior. Abbreviations: ar, anterior curved ridge (for intercostal ligaments/muscles); cap, capitulum (rib head); n, neck of the rib; tub, tuberculum. Scale bar = 10 cm.	Figure 25. Hypselospinus cf. fittoni. NHMUK R604a. Dorsal ribs. A, right anterior; B, right middle; C, right middleposterior; D, right posterior. Abbreviations: ar, anterior curved ridge (for intercostal ligaments/muscles); cap, capitulum (rib head); n, neck of the rib; tub, tuberculum. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5369656/files/figure.png	https://doi.org/10.5281/zenodo.5369656	Figure 26. Hypselospinus cf. fittoni. NHMUK R604. Anterior caudals (range: 1–4). A, A1−A4, lateral, anterior, posteri- or, ventral, and dorsal views, respectively. B, B1, B2, lateral, anterior, and posterior views, respectively. Abbreviations: cf, chevron facet; cr, caudal rib; poz, postzygapophysis; prz, prezygapophysis; sul, sulcus. Hatching indicates broken bone. Scale bar = 10 cm.	Figure 26. Hypselospinus cf. fittoni. NHMUK R604. Anterior caudals (range: 1–4). A, A1−A4, lateral, anterior, posteri- or, ventral, and dorsal views, respectively. B, B1, B2, lateral, anterior, and posterior views, respectively. Abbreviations: cf, chevron facet; cr, caudal rib; poz, postzygapophysis; prz, prezygapophysis; sul, sulcus. Hatching indicates broken bone. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5369658/files/figure.png	https://doi.org/10.5281/zenodo.5369658	Figure 27. Hypselospinus cf. fittoni. NHMUK R604. Anterior caudal (range: 3–5). A, A1−A4, lateral, anterior, posterior, ventral, and dorsal views, respectively. Abbreviations: asr, anterior slot-and-ridge margin to the neural spine; cf, chevron facet; cr, caudal rib; poz, postzygapophysis; prz, prezygapophysis; psr, posterior slot-and-ridge margin to the neural spine. Scale bar = 10 cm.	Figure 27. Hypselospinus cf. fittoni. NHMUK R604. Anterior caudal (range: 3–5). A, A1−A4, lateral, anterior, posterior, ventral, and dorsal views, respectively. Abbreviations: asr, anterior slot-and-ridge margin to the neural spine; cf, chevron facet; cr, caudal rib; poz, postzygapophysis; prz, prezygapophysis; psr, posterior slot-and-ridge margin to the neural spine. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330464/files/figure.png	https://doi.org/10.5281/zenodo.5330464	Figure 1. The location of the town of Hastings within the county of East Sussex in the UK. Quarries (Q) and location names indicate sites that are known to have yielded Iguanodon-like ornithopod remains (most of which were collected by either Samuel H. Beckles or Charles Dawson). The ambiguity surrounding the location of ‘Hollington Quarry’ is genuine and reflects inconsistencies and vagueness introduced (probably by Dawson) when the documentation of these collections was being assembled in the late 1880s. Abbreviation: IoW, Isle of Wight.	Figure 1. The location of the town of Hastings within the county of East Sussex in the UK. Quarries (Q) and location names indicate sites that are known to have yielded Iguanodon-like ornithopod remains (most of which were collected by either Samuel H. Beckles or Charles Dawson). The ambiguity surrounding the location of ‘Hollington Quarry’ is genuine and reflects inconsistencies and vagueness introduced (probably by Dawson) when the documentation of these collections was being assembled in the late 1880s. Abbreviation: IoW, Isle of Wight.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330468/files/figure.png	https://doi.org/10.5281/zenodo.5330468	Figure 3. Comparative ilia. A, Iguanodon (= Hypselospinus) fittoni NHMUK R1635, holotype in lateral view; B, NHMUK R1635 in medial view; C, Iguanodon (= Barilium) dawsoni NHMUK R802, holotype in lateral view; D, NHMUK R802, holotype in medial view. Abbreviations:?brf, brevis fossa non-existent (the area forming a smoothly curved overhang); brf, brevis fossa; lr, lateral ridge that demarcates the brevis fossa;?mr, medial ridge (much reduced); mr, medial ridge very prominent and forming an overhanging ledge; prp, preacetabular process; srf, sacral rib facet (prominent medially and clearly visible laterally). Scale bars = 10 cm.	Figure 3. Comparative ilia. A, Iguanodon (= Hypselospinus) fittoni NHMUK R1635, holotype in lateral view; B, NHMUK R1635 in medial view; C, Iguanodon (= Barilium) dawsoni NHMUK R802, holotype in lateral view; D, NHMUK R802, holotype in medial view. Abbreviations:?brf, brevis fossa non-existent (the area forming a smoothly curved overhang); brf, brevis fossa; lr, lateral ridge that demarcates the brevis fossa;?mr, medial ridge (much reduced); mr, medial ridge very prominent and forming an overhanging ledge; prp, preacetabular process; srf, sacral rib facet (prominent medially and clearly visible laterally). Scale bars = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330472/files/figure.png	https://doi.org/10.5281/zenodo.5330472	Figure 4. Iguanodon hollingtoniensis (= Hypselospinus fittoni) holotype. NHMUK R1148. A, femur (right) nearly complete but crushed, as illustrated by Lydekker (1890a) (a, articular head; b, anterior trochanter; c, fourth trochanter, with exaggerated pendant tip; d, lateral distal condyle; e, medial distal condyle); B, C, the original specimen as preserved (May 2011) in dorsal and ventral views, respectively – the ventral view reveals the extent of longitudinal crushing postmortem. Abbreviations: 4t, fourth trochanter; at, anterior (lesser) trochanter; cr, crushing of the dorsal part of the medial condyle; icg, anterior intercondylar groove. Scale bar = 10 cm.	Figure 4. Iguanodon hollingtoniensis (= Hypselospinus fittoni) holotype. NHMUK R1148. A, femur (right) nearly complete but crushed, as illustrated by Lydekker (1890a) (a, articular head; b, anterior trochanter; c, fourth trochanter, with exaggerated pendant tip; d, lateral distal condyle; e, medial distal condyle); B, C, the original specimen as preserved (May 2011) in dorsal and ventral views, respectively – the ventral view reveals the extent of longitudinal crushing postmortem. Abbreviations: 4t, fourth trochanter; at, anterior (lesser) trochanter; cr, crushing of the dorsal part of the medial condyle; icg, anterior intercondylar groove. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5369660/files/figure.png	https://doi.org/10.5281/zenodo.5369660	Figure 28. Hypselospinus cf. fittoni. NHMUK R604. Anterior-middle caudals (range: 7–13). A, A1, A2, lateral, anterior, and ventral views, respectively. B−E, lateral views of typical anterior-middle caudal vertebrae. Caudal ribs and chevron facets well-developed, ventral surface of the centrum convex transversely. Abbreviations: asr, anterior slot-andridge margin to the neural spine; cf, chevron facet; cr, caudal rib; psr, posterior slot-and-ridge margin to the neural spine. Scale bar = 10 cm.	Figure 28. Hypselospinus cf. fittoni. NHMUK R604. Anterior-middle caudals (range: 7–13). A, A1, A2, lateral, anterior, and ventral views, respectively. B−E, lateral views of typical anterior-middle caudal vertebrae. Caudal ribs and chevron facets well-developed, ventral surface of the centrum convex transversely. Abbreviations: asr, anterior slot-andridge margin to the neural spine; cf, chevron facet; cr, caudal rib; psr, posterior slot-and-ridge margin to the neural spine. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3254FF90FC71F912FCC67A0A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5369662/files/figure.png	https://doi.org/10.5281/zenodo.5369662	Figure 29. Hypselospinus cf. fittoni. NHMUK R1632. Middle and posterior caudals. A, A1, A2, middle caudal centrum in lateral, ventral, and anterior views respectively. B, C (from top to bottom), posterior caudal centra in lateral, ventral, and anterior views. Abbreviations: cf, chevron facet; sul, midline sulcus. Scale bar = 10 cm.	Figure 29. Hypselospinus cf. fittoni. NHMUK R1632. Middle and posterior caudals. A, A1, A2, middle caudal centrum in lateral, ventral, and anterior views respectively. B, C (from top to bottom), posterior caudal centra in lateral, ventral, and anterior views. Abbreviations: cf, chevron facet; sul, midline sulcus. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3278FFB8FC1FF941FBDB7EFE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330552/files/figure.png	https://doi.org/10.5281/zenodo.5330552	Figure 47. Hypselospinus fittoni. A preliminary reconstruction of the skeleton based upon the type and referred material described in this article. NB: forelimb relative to hindlimb length, and proportions, are currently unknown. Scale bar = 1 m.	Figure 47. Hypselospinus fittoni. A preliminary reconstruction of the skeleton based upon the type and referred material described in this article. NB: forelimb relative to hindlimb length, and proportions, are currently unknown. Scale bar = 1 m.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B327AFFB6FF1DF91AFD2E7EF9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330466/files/figure.png	https://doi.org/10.5281/zenodo.5330466	Figure 2. Stratigraphy of the Wealden of southern England. Stratigraphical chart based upon Batten (2011: textfig. 2.1) with the approximate stratigraphical distribution of the principal large-bodied ornithopod taxa indicated using solid vertical bars. Abbreviations: Fm, Formation; GC Fm, Grinstead Clay Formation; Lower Grnsd, Lower Greensand; L.T.W. Sand Fm, Lower Tunbridge Wells Sand Formation; U.T.W. Sand Fm, Upper Tunbridge Wells Sand Formation; B., Barilium; H., Hypselospinus; I., Iguanodon; M., Mantellisaurus.	Figure 2. Stratigraphy of the Wealden of southern England. Stratigraphical chart based upon Batten (2011: textfig. 2.1) with the approximate stratigraphical distribution of the principal large-bodied ornithopod taxa indicated using solid vertical bars. Abbreviations: Fm, Formation; GC Fm, Grinstead Clay Formation; Lower Grnsd, Lower Greensand; L.T.W. Sand Fm, Lower Tunbridge Wells Sand Formation; U.T.W. Sand Fm, Upper Tunbridge Wells Sand Formation; B., Barilium; H., Hypselospinus; I., Iguanodon; M., Mantellisaurus.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B327AFFB6FF1DF91AFD2E7EF9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330464/files/figure.png	https://doi.org/10.5281/zenodo.5330464	Figure 1. The location of the town of Hastings within the county of East Sussex in the UK. Quarries (Q) and location names indicate sites that are known to have yielded Iguanodon-like ornithopod remains (most of which were collected by either Samuel H. Beckles or Charles Dawson). The ambiguity surrounding the location of ‘Hollington Quarry’ is genuine and reflects inconsistencies and vagueness introduced (probably by Dawson) when the documentation of these collections was being assembled in the late 1880s. Abbreviation: IoW, Isle of Wight.	Figure 1. The location of the town of Hastings within the county of East Sussex in the UK. Quarries (Q) and location names indicate sites that are known to have yielded Iguanodon-like ornithopod remains (most of which were collected by either Samuel H. Beckles or Charles Dawson). The ambiguity surrounding the location of ‘Hollington Quarry’ is genuine and reflects inconsistencies and vagueness introduced (probably by Dawson) when the documentation of these collections was being assembled in the late 1880s. Abbreviation: IoW, Isle of Wight.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3277FFB4FF00FC97FB2878E2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330466/files/figure.png	https://doi.org/10.5281/zenodo.5330466	Figure 2. Stratigraphy of the Wealden of southern England. Stratigraphical chart based upon Batten (2011: textfig. 2.1) with the approximate stratigraphical distribution of the principal large-bodied ornithopod taxa indicated using solid vertical bars. Abbreviations: Fm, Formation; GC Fm, Grinstead Clay Formation; Lower Grnsd, Lower Greensand; L.T.W. Sand Fm, Lower Tunbridge Wells Sand Formation; U.T.W. Sand Fm, Upper Tunbridge Wells Sand Formation; B., Barilium; H., Hypselospinus; I., Iguanodon; M., Mantellisaurus.	Figure 2. Stratigraphy of the Wealden of southern England. Stratigraphical chart based upon Batten (2011: textfig. 2.1) with the approximate stratigraphical distribution of the principal large-bodied ornithopod taxa indicated using solid vertical bars. Abbreviations: Fm, Formation; GC Fm, Grinstead Clay Formation; Lower Grnsd, Lower Greensand; L.T.W. Sand Fm, Lower Tunbridge Wells Sand Formation; U.T.W. Sand Fm, Upper Tunbridge Wells Sand Formation; B., Barilium; H., Hypselospinus; I., Iguanodon; M., Mantellisaurus.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3277FFB4FF00FC97FB2878E2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330544/files/figure.png	https://doi.org/10.5281/zenodo.5330544	Figure 44. Hypselospinus cf. fittoni. NHMUK R1834. Dentary (left, partial). A, medial (lingual); B, lateral (labial); C, dorsal. Abbreviations: am, alveolar margin; alv, alveolar trough; dias, margin forming a diastema; ds, dentary symphysis; mgr, Meckelian groove; sa.s, surangular suture; sl, posterior ‘slot-and-lip’ portion of the dentary symphysis; vc, vascular channel. Scale bar = 10 cm.	Figure 44. Hypselospinus cf. fittoni. NHMUK R1834. Dentary (left, partial). A, medial (lingual); B, lateral (labial); C, dorsal. Abbreviations: am, alveolar margin; alv, alveolar trough; dias, margin forming a diastema; ds, dentary symphysis; mgr, Meckelian groove; sa.s, surangular suture; sl, posterior ‘slot-and-lip’ portion of the dentary symphysis; vc, vascular channel. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3277FFB4FF00FC97FB2878E2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5369676/files/figure.png	https://doi.org/10.5281/zenodo.5369676	Figure 36. Hypselospinus cf. fittoni. NHMUK R1831. Dentary right with teeth preserved in situ. A, medial; B, lateral; C, dorsal views. Abbreviations: am, alveolar margin; br, badly broken portion of the dentary; cp, coronoid process; ds, dentary symphysis; m, matrix; mgr, Meckelian groove; pr, anterior lateral process of the dentary; sf, sutural facet; sl, ‘slot-and-lip’ portion of the dentary symphysis; tf, tooth fragments in alveolar bone; vc, vascular channel. Scale bar = 10 cm.	Figure 36. Hypselospinus cf. fittoni. NHMUK R1831. Dentary right with teeth preserved in situ. A, medial; B, lateral; C, dorsal views. Abbreviations: am, alveolar margin; br, badly broken portion of the dentary; cp, coronoid process; ds, dentary symphysis; m, matrix; mgr, Meckelian groove; pr, anterior lateral process of the dentary; sf, sutural facet; sl, ‘slot-and-lip’ portion of the dentary symphysis; tf, tooth fragments in alveolar bone; vc, vascular channel. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3277FFB4FF00FC97FB2878E2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330540/files/figure.png	https://doi.org/10.5281/zenodo.5330540	Figure 43. Hypselospinus cf. fittoni. NHMUK R1831 (R1835). Sternal apparatus. A, external (ventral); B, internal (dorsal). Abbreviations: apr, apron area of sternal blade; con, condylar area for attachment of dorsal rib cartilage; co.s, coracoid suture; ‘h’, sternal handles; iso, intersternal ossification; k, midline keeled structure traversed by strands of bony tissue; lf, lateral fingers of ossified tissue; st, sternal bone. Scale bar = 10 cm.	Figure 43. Hypselospinus cf. fittoni. NHMUK R1831 (R1835). Sternal apparatus. A, external (ventral); B, internal (dorsal). Abbreviations: apr, apron area of sternal blade; con, condylar area for attachment of dorsal rib cartilage; co.s, coracoid suture; ‘h’, sternal handles; iso, intersternal ossification; k, midline keeled structure traversed by strands of bony tissue; lf, lateral fingers of ossified tissue; st, sternal bone. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3277FFB5FC23FA6DFE267B8D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330466/files/figure.png	https://doi.org/10.5281/zenodo.5330466	Figure 2. Stratigraphy of the Wealden of southern England. Stratigraphical chart based upon Batten (2011: textfig. 2.1) with the approximate stratigraphical distribution of the principal large-bodied ornithopod taxa indicated using solid vertical bars. Abbreviations: Fm, Formation; GC Fm, Grinstead Clay Formation; Lower Grnsd, Lower Greensand; L.T.W. Sand Fm, Lower Tunbridge Wells Sand Formation; U.T.W. Sand Fm, Upper Tunbridge Wells Sand Formation; B., Barilium; H., Hypselospinus; I., Iguanodon; M., Mantellisaurus.	Figure 2. Stratigraphy of the Wealden of southern England. Stratigraphical chart based upon Batten (2011: textfig. 2.1) with the approximate stratigraphical distribution of the principal large-bodied ornithopod taxa indicated using solid vertical bars. Abbreviations: Fm, Formation; GC Fm, Grinstead Clay Formation; Lower Grnsd, Lower Greensand; L.T.W. Sand Fm, Lower Tunbridge Wells Sand Formation; U.T.W. Sand Fm, Upper Tunbridge Wells Sand Formation; B., Barilium; H., Hypselospinus; I., Iguanodon; M., Mantellisaurus.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3277FFB5FC23FA6DFE267B8D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5369676/files/figure.png	https://doi.org/10.5281/zenodo.5369676	Figure 36. Hypselospinus cf. fittoni. NHMUK R1831. Dentary right with teeth preserved in situ. A, medial; B, lateral; C, dorsal views. Abbreviations: am, alveolar margin; br, badly broken portion of the dentary; cp, coronoid process; ds, dentary symphysis; m, matrix; mgr, Meckelian groove; pr, anterior lateral process of the dentary; sf, sutural facet; sl, ‘slot-and-lip’ portion of the dentary symphysis; tf, tooth fragments in alveolar bone; vc, vascular channel. Scale bar = 10 cm.	Figure 36. Hypselospinus cf. fittoni. NHMUK R1831. Dentary right with teeth preserved in situ. A, medial; B, lateral; C, dorsal views. Abbreviations: am, alveolar margin; br, badly broken portion of the dentary; cp, coronoid process; ds, dentary symphysis; m, matrix; mgr, Meckelian groove; pr, anterior lateral process of the dentary; sf, sutural facet; sl, ‘slot-and-lip’ portion of the dentary symphysis; tf, tooth fragments in alveolar bone; vc, vascular channel. Scale bar = 10 cm.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B320FFFCCFF06FD85FB377D9F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5369678/files/figure.png	https://doi.org/10.5281/zenodo.5369678	Figure 37. Hypselospinus cf. fittoni. NHMUK R1831. Teeth. A, dentary tooth in lingual view (isolated specimen on stub of matrix); B, maxillary tooth in labial view. C−E, dentary replacement crowns embedded in the alveolar bone of the dentary. Abbreviations: m, mammillae on the marginal denticles; p, primary ridge; r, minor ridges; st, strand-like ridges.	Figure 37. Hypselospinus cf. fittoni. NHMUK R1831. Teeth. A, dentary tooth in lingual view (isolated specimen on stub of matrix); B, maxillary tooth in labial view. C−E, dentary replacement crowns embedded in the alveolar bone of the dentary. Abbreviations: m, mammillae on the marginal denticles; p, primary ridge; r, minor ridges; st, strand-like ridges.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3203FFDFFF6FFA4CFF237BE9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330560/files/figure.png	https://doi.org/10.5281/zenodo.5330560	Figure 50. A tree based upon the analysis that generated Figure 48, with particular nodes and stems named (see text for discussion/explanation). Abbreviations: CI, consistency index; RC, rescaled consistency index; RI, retention index.	Figure 50. A tree based upon the analysis that generated Figure 48, with particular nodes and stems named (see text for discussion/explanation). Abbreviations: CI, consistency index; RC, rescaled consistency index; RI, retention index.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3203FFDFFF6FFA4CFF237BE9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330568/files/figure.png	https://doi.org/10.5281/zenodo.5330568	Figure 52. A phylogeny derived from Figure 49 calibrated, by reference to known stratigraphical ranges of individual taxa plotted, against the geological timescale. Approximate age ranges of known taxa are indicated by black rectangles, and where there are implied stratigraphical ranges these are indicated by connecting tramlines. In instances where implied divergence events have occurred and generated substantial ghost-ranges, these are indicated by cross-hatching.	Figure 52. A phylogeny derived from Figure 49 calibrated, by reference to known stratigraphical ranges of individual taxa plotted, against the geological timescale. Approximate age ranges of known taxa are indicated by black rectangles, and where there are implied stratigraphical ranges these are indicated by connecting tramlines. In instances where implied divergence events have occurred and generated substantial ghost-ranges, these are indicated by cross-hatching.	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3203FFDFFF6FFA4CFF237BE9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330558/files/figure.png	https://doi.org/10.5281/zenodo.5330558	Figure 49. The tree used for Sereno’s (1998, 2005) stabilized ornithopod clade nomenclature. Is this a stable tree? Specific points of contention include the status of: Hypsilophodontidae (status disputed, widely regarded as paraphyletic – Butler et al., 2008), Iguanodontia (constituent taxa and topographical position of Tenontosaurus disputed – here), Camptosauridae (status and constituent taxa uncertain – McDonald, 2011), Probactrosaurus (topographical position disputed – Norman, 2002, 2004; Wang et al., 2010; Wu & Godefroit, 2012), Iguanodontidae (family status disputed and inconsistent constituent taxa – here, Norman, 2004; Wu & Godefroit, 2012), Hadrosauriformes (constituent taxa disputed – here, Norman, 2004; McDonald, Barrett & Chapman, 2010a), Hadrosauroidea (topographical position of Ouranosaurus disputed – Norman, 2004; McDonald, Barrett & Chapman, 2010a; Wang et al., 2010; Wu & Godefroit, 2012).	Figure 49. The tree used for Sereno’s (1998, 2005) stabilized ornithopod clade nomenclature. Is this a stable tree? Specific points of contention include the status of: Hypsilophodontidae (status disputed, widely regarded as paraphyletic – Butler et al., 2008), Iguanodontia (constituent taxa and topographical position of Tenontosaurus disputed – here), Camptosauridae (status and constituent taxa uncertain – McDonald, 2011), Probactrosaurus (topographical position disputed – Norman, 2002, 2004; Wang et al., 2010; Wu & Godefroit, 2012), Iguanodontidae (family status disputed and inconsistent constituent taxa – here, Norman, 2004; Wu & Godefroit, 2012), Hadrosauriformes (constituent taxa disputed – here, Norman, 2004; McDonald, Barrett & Chapman, 2010a), Hadrosauroidea (topographical position of Ouranosaurus disputed – Norman, 2004; McDonald, Barrett & Chapman, 2010a; Wang et al., 2010; Wu & Godefroit, 2012).	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
03F9879B3203FFDFFF6FFA4CFF237BE9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5330564/files/figure.png	https://doi.org/10.5281/zenodo.5330564	Figure 51. A tree ‘adjusted’ (using the MacClade 4 tree window editor) by the addition of three operational taxonomic units (Batyrosaurus, Hypselospinus, and Ouranosaurus) that lie immediately basal to the ‘iguanodontoid’ subclade into the stem of that subclade (compare with Fig. 49). Tree length: 316 (consistency index: 0.57; retention index: 0.78).	Figure 51. A tree ‘adjusted’ (using the MacClade 4 tree window editor) by the addition of three operational taxonomic units (Batyrosaurus, Hypselospinus, and Ouranosaurus) that lie immediately basal to the ‘iguanodontoid’ subclade into the stem of that subclade (compare with Fig. 49). Tree length: 316 (consistency index: 0.57; retention index: 0.78).	2015-01-31	Norman, David B.		Zenodo	biologists	Norman, David B.			
