taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
03EBF65BFFE8FFA2FC64F917FD10FC24.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342617/files/figure.png	https://doi.org/10.5281/zenodo.13342617	FIGURE 2. Photographs of Caiman brevirostris (MCNC-1829). 1, right dorsolateral view. 2, left ventrolateral view. 3, right lateral view. Note that the specimen is strongly crushed and folded in on itself.	FIGURE 2. Photographs of Caiman brevirostris (MCNC-1829). 1, right dorsolateral view. 2, left ventrolateral view. 3, right lateral view. Note that the specimen is strongly crushed and folded in on itself.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE8FFA2FC64F917FD10FC24.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342622/files/figure.png	https://doi.org/10.5281/zenodo.13342622	FIGURE 3. Photographs (1, 3, 5) and interpretative drawings (2, 4, 6) of Caiman brevirostris (MCNC-1829). 1, 2, close-up of the fronto-nasal contact in right dorsolateral view. 3, 4, close-up of the skull roof in dorsal view. 5, 6, closeup of the craniomandibular articulation in slanted right dorsolateral view. Abbreviations: an, angular, ar, articular; d, dentary; f, frontal; j, jugal, itf, infratemporal fenestra; mf, mandibular fenestra; n, nasal; o, orbit; oc, occipital condyle; po, postorbital; prf, prefrontal, q, quadrate; qj, quadratojugal; sa, surangular; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra.	FIGURE 3. Photographs (1, 3, 5) and interpretative drawings (2, 4, 6) of Caiman brevirostris (MCNC-1829). 1, 2, close-up of the fronto-nasal contact in right dorsolateral view. 3, 4, close-up of the skull roof in dorsal view. 5, 6, closeup of the craniomandibular articulation in slanted right dorsolateral view. Abbreviations: an, angular, ar, articular; d, dentary; f, frontal; j, jugal, itf, infratemporal fenestra; mf, mandibular fenestra; n, nasal; o, orbit; oc, occipital condyle; po, postorbital; prf, prefrontal, q, quadrate; qj, quadratojugal; sa, surangular; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE8FFA2FC64F917FD10FC24.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342626/files/figure.png	https://doi.org/10.5281/zenodo.13342626	FIGURE 4. Interpretative drawings of skull bone configuration in the rostro-orbital region of three small sized caimanines from the Urumaco Formation, in comparison to three living caimanines (anterior is to the top). 1, Melanosuchus fisheri based on holotype skull MCNC-243. 2, Globidentosuchus brachyrostris based on holotype skull AMU- CURS-222. 3, Caiman brevirostris based on MCNC-1829 from the late Miocene Urumaco Formation, Urumaco, Venezuela. 4, Caiman brevirostris from the Pleistocene of Acre, Brazil (UFAC-196) originally described by Souza Filho (1987, also figured in Fortier et al., 2014). Note that the anterior projection of the frontal appears much broader in the Venezuelan specimen than in the Pleistocene specimen. 5, extant Melanosuchus niger based on ZSM 76/1911 (picture courtesy: Julia Desojo; see also Foth et al., 2015). 6, extant Caiman crocodilus based on Iordansky (1973, figure 7A). 7, extant Caiman latirostris based on Bona and Desojo (2011, figure 2). 8, extant Paleosuchus trigonatus and 9, extant Paleosuchus palpebrosus based on Medem (1958, figure 36). The bridge of the ‘spectacles’ between the orbits is indicated in 1, 5, 6, and 7. Drawings not to scale. Abbreviations: f, frontal; n, nasal; o, orbit; prf, prefrontal.	FIGURE 4. Interpretative drawings of skull bone configuration in the rostro-orbital region of three small sized caimanines from the Urumaco Formation, in comparison to three living caimanines (anterior is to the top). 1, Melanosuchus fisheri based on holotype skull MCNC-243. 2, Globidentosuchus brachyrostris based on holotype skull AMU- CURS-222. 3, Caiman brevirostris based on MCNC-1829 from the late Miocene Urumaco Formation, Urumaco, Venezuela. 4, Caiman brevirostris from the Pleistocene of Acre, Brazil (UFAC-196) originally described by Souza Filho (1987, also figured in Fortier et al., 2014). Note that the anterior projection of the frontal appears much broader in the Venezuelan specimen than in the Pleistocene specimen. 5, extant Melanosuchus niger based on ZSM 76/1911 (picture courtesy: Julia Desojo; see also Foth et al., 2015). 6, extant Caiman crocodilus based on Iordansky (1973, figure 7A). 7, extant Caiman latirostris based on Bona and Desojo (2011, figure 2). 8, extant Paleosuchus trigonatus and 9, extant Paleosuchus palpebrosus based on Medem (1958, figure 36). The bridge of the ‘spectacles’ between the orbits is indicated in 1, 5, 6, and 7. Drawings not to scale. Abbreviations: f, frontal; n, nasal; o, orbit; prf, prefrontal.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE8FFA2FC64F917FD10FC24.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342628/files/figure.png	https://doi.org/10.5281/zenodo.13342628	FIGURE 5. Photograph (1) and interpretative drawing (2) of Caiman brevirostris (MCNC-1829) in occipital view. Abbreviations: bo, basioccipital; eo, exoccipital; fm, foramen magnum; j, jugal; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra; oc, occipital condyle; pt, pterygoid; q, quadrate; qj, quadratojugal.	FIGURE 5. Photograph (1) and interpretative drawing (2) of Caiman brevirostris (MCNC-1829) in occipital view. Abbreviations: bo, basioccipital; eo, exoccipital; fm, foramen magnum; j, jugal; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra; oc, occipital condyle; pt, pterygoid; q, quadrate; qj, quadratojugal.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE8FFA2FC64F917FD10FC24.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342630/files/figure.png	https://doi.org/10.5281/zenodo.13342630	FIGURE 6. Photographs (1, 3, 5) and interpretative drawings (2, 4, 6) of Caiman wannlangstoni (AMU-CURS-49). 1, 2, dorsal view. 3, 4, ventral view. 5, 6, right lateral view. Occlusion pits are marked in grey. The partially preserved teeth in the third premaxillary alveolus and the third and tenth maxillary alveoli are marked in dark grey. Note that the two occlusion pits anteromedial and posteromedial to the fourth premaxillary alveolus are preserved only as very faint impressions on the bone surface. Abbreviations: mx, maxilla; n, nasal; op, occlusion pit; pmx, premaxilla.	FIGURE 6. Photographs (1, 3, 5) and interpretative drawings (2, 4, 6) of Caiman wannlangstoni (AMU-CURS-49). 1, 2, dorsal view. 3, 4, ventral view. 5, 6, right lateral view. Occlusion pits are marked in grey. The partially preserved teeth in the third premaxillary alveolus and the third and tenth maxillary alveoli are marked in dark grey. Note that the two occlusion pits anteromedial and posteromedial to the fourth premaxillary alveolus are preserved only as very faint impressions on the bone surface. Abbreviations: mx, maxilla; n, nasal; op, occlusion pit; pmx, premaxilla.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE8FFA2FC64F917FD10FC24.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342634/files/figure.png	https://doi.org/10.5281/zenodo.13342634	FIGURE 7. Photographs (1, 3) and interpretative drawings (2, 4) of Caiman latirostris (MCNC-URU-145-72V). 1, 2, dorsal view. 3, 4, ventral view. Alveoli are marked with numbers, occlusion pits in dark grey. The internal trabecular space within the maxilla is marked in light grey. Abbreviations: en, external naris; mx, maxilla; n, nasal; op, occlusion pit; pmx, premaxilla.	FIGURE 7. Photographs (1, 3) and interpretative drawings (2, 4) of Caiman latirostris (MCNC-URU-145-72V). 1, 2, dorsal view. 3, 4, ventral view. Alveoli are marked with numbers, occlusion pits in dark grey. The internal trabecular space within the maxilla is marked in light grey. Abbreviations: en, external naris; mx, maxilla; n, nasal; op, occlusion pit; pmx, premaxilla.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE3FFA2FF37FA19FC38F944.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342637/files/figure.png	https://doi.org/10.5281/zenodo.13342637	FIGURE 8. Photographs of Globidentosuchus brachyrostris (AMU-CURS-067). 1-3, left ramus of lower jaw in lateral (1), medial (2), and dorsal (3) view. 4-6, anterior, portion of right ramus in lateral (4), medial (5), and dorsal (6) view. 7, 8, fragment of a (right?) maxilla in ventral (7) and lateral (8) view. 9, 10, Fragment of a (left?) premaxilla in ventral (9) and dorsal (10) view. 11, indeterminate cranial fragment found associated with the other skeletal element and therefore referred to the same specimen.	FIGURE 8. Photographs of Globidentosuchus brachyrostris (AMU-CURS-067). 1-3, left ramus of lower jaw in lateral (1), medial (2), and dorsal (3) view. 4-6, anterior, portion of right ramus in lateral (4), medial (5), and dorsal (6) view. 7, 8, fragment of a (right?) maxilla in ventral (7) and lateral (8) view. 9, 10, Fragment of a (left?) premaxilla in ventral (9) and dorsal (10) view. 11, indeterminate cranial fragment found associated with the other skeletal element and therefore referred to the same specimen.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE3FFA2FF37FA19FC38F944.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342642/files/figure.png	https://doi.org/10.5281/zenodo.13342642	FIGURE 9. Photographs and interpretative drawings of Globidentosuchus brachyrostris lower jaw (AMU-CURS- 067). 1, 2, assembled right and left ramus in dorsal view showing posterior crushing dentition and the splenials participating in symphysis. 3, 4, posterior part of left ramus in lateral view. 5, 6, posterior part of left ramus in medial view. Note that fragment of articular is still partially present, articulating with the angular ventrally. Abbreviations: a, angular; ar, articular; co, coronoid; d, dentary; fic, foramen intermandibularis caudalis; fme; external mandibular fenestra; path, area of pathology; sa, surangular; sed, sediment; sp, splenial.	FIGURE 9. Photographs and interpretative drawings of Globidentosuchus brachyrostris lower jaw (AMU-CURS- 067). 1, 2, assembled right and left ramus in dorsal view showing posterior crushing dentition and the splenials participating in symphysis. 3, 4, posterior part of left ramus in lateral view. 5, 6, posterior part of left ramus in medial view. Note that fragment of articular is still partially present, articulating with the angular ventrally. Abbreviations: a, angular; ar, articular; co, coronoid; d, dentary; fic, foramen intermandibularis caudalis; fme; external mandibular fenestra; path, area of pathology; sa, surangular; sed, sediment; sp, splenial.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE3FFA2FF34FC6FFE91FA8F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342637/files/figure.png	https://doi.org/10.5281/zenodo.13342637	FIGURE 8. Photographs of Globidentosuchus brachyrostris (AMU-CURS-067). 1-3, left ramus of lower jaw in lateral (1), medial (2), and dorsal (3) view. 4-6, anterior, portion of right ramus in lateral (4), medial (5), and dorsal (6) view. 7, 8, fragment of a (right?) maxilla in ventral (7) and lateral (8) view. 9, 10, Fragment of a (left?) premaxilla in ventral (9) and dorsal (10) view. 11, indeterminate cranial fragment found associated with the other skeletal element and therefore referred to the same specimen.	FIGURE 8. Photographs of Globidentosuchus brachyrostris (AMU-CURS-067). 1-3, left ramus of lower jaw in lateral (1), medial (2), and dorsal (3) view. 4-6, anterior, portion of right ramus in lateral (4), medial (5), and dorsal (6) view. 7, 8, fragment of a (right?) maxilla in ventral (7) and lateral (8) view. 9, 10, Fragment of a (left?) premaxilla in ventral (9) and dorsal (10) view. 11, indeterminate cranial fragment found associated with the other skeletal element and therefore referred to the same specimen.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE3FFA2FF34FC6FFE91FA8F.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342642/files/figure.png	https://doi.org/10.5281/zenodo.13342642	FIGURE 9. Photographs and interpretative drawings of Globidentosuchus brachyrostris lower jaw (AMU-CURS- 067). 1, 2, assembled right and left ramus in dorsal view showing posterior crushing dentition and the splenials participating in symphysis. 3, 4, posterior part of left ramus in lateral view. 5, 6, posterior part of left ramus in medial view. Note that fragment of articular is still partially present, articulating with the angular ventrally. Abbreviations: a, angular; ar, articular; co, coronoid; d, dentary; fic, foramen intermandibularis caudalis; fme; external mandibular fenestra; path, area of pathology; sa, surangular; sed, sediment; sp, splenial.	FIGURE 9. Photographs and interpretative drawings of Globidentosuchus brachyrostris lower jaw (AMU-CURS- 067). 1, 2, assembled right and left ramus in dorsal view showing posterior crushing dentition and the splenials participating in symphysis. 3, 4, posterior part of left ramus in lateral view. 5, 6, posterior part of left ramus in medial view. Note that fragment of articular is still partially present, articulating with the angular ventrally. Abbreviations: a, angular; ar, articular; co, coronoid; d, dentary; fic, foramen intermandibularis caudalis; fme; external mandibular fenestra; path, area of pathology; sa, surangular; sed, sediment; sp, splenial.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE3FFB8FC96F94FFAEBF8B0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342646/files/figure.png	https://doi.org/10.5281/zenodo.13342646	FIGURE 10. Photographs of Globidentosuchus cf. G. brachyrostris. 1-6, AMU-CURS-083. 7-18, AMU-CURS-084. 1, articulated left and right associated dentary in dorsal view. 2, 3, isolated right dentary in dorsal and angled medial view. 4-6, right dentary of (1) in lateral (4), dorsolateral (5) and angled medial view (6). 7, 8, right maxilla in angled lateral and angled medial view. 9, 10, right angular in medial and dorsal view. 11, 12, left articular and portion of surangular in angled medial and lateral view. 13, 14, right surangular sutured to part of dentary in angled medial and lateral view. 15, 16, left surangular in medial and lateral view. 17, 18, teeth. Abbreviations: d, dentary; ds, scar for dentary articulation; fic; foramen intermandibularis caudalis; fo, foramen; sa, surangular.	FIGURE 10. Photographs of Globidentosuchus cf. G. brachyrostris. 1-6, AMU-CURS-083. 7-18, AMU-CURS-084. 1, articulated left and right associated dentary in dorsal view. 2, 3, isolated right dentary in dorsal and angled medial view. 4-6, right dentary of (1) in lateral (4), dorsolateral (5) and angled medial view (6). 7, 8, right maxilla in angled lateral and angled medial view. 9, 10, right angular in medial and dorsal view. 11, 12, left articular and portion of surangular in angled medial and lateral view. 13, 14, right surangular sutured to part of dentary in angled medial and lateral view. 15, 16, left surangular in medial and lateral view. 17, 18, teeth. Abbreviations: d, dentary; ds, scar for dentary articulation; fic; foramen intermandibularis caudalis; fo, foramen; sa, surangular.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE3FFB8FC96F94FFAEBF8B0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342652/files/figure.png	https://doi.org/10.5281/zenodo.13342652	FIGURE 11. Images of Globidentosuchus cf. G. brachyrostris (UNEFM-VF-017) including three right dentaries (1-4), one left dentary (5, 6), and one left angular in angled dorsal (7) and medial (8) view. Images of dentaries in 3, 4, and 5 in dorsal view, 2 and 6 in ventral view. Note splenial associated with dentary and reaching the symphysis in (4).	FIGURE 11. Images of Globidentosuchus cf. G. brachyrostris (UNEFM-VF-017) including three right dentaries (1-4), one left dentary (5, 6), and one left angular in angled dorsal (7) and medial (8) view. Images of dentaries in 3, 4, and 5 in dorsal view, 2 and 6 in ventral view. Note splenial associated with dentary and reaching the symphysis in (4).	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE3FFB8FC96F94FFAEBF8B0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342655/files/figure.png	https://doi.org/10.5281/zenodo.13342655	FIGURE 12. Photographs of the holotype skull of Melanosuchus fisheri (MCNC-243; 1-4) and the skull and associated lower jaw assignable to Caimaninae aff. Melanosuchus fisheri (AMU-CURS-234, 5-8). 1, skull in dorsal view. 2, close-up of the sutures between the frontal, prefrontals and posterior portion of nasals. Compare to interpretative drawing in Figure 4.1. 3, skull in left lateral view. 4, skull in occipital view. 5, 6, skull in dorsal and ventral view. 7, 8, lower jaw in dorsal and ventral view. Abbreviations: f, frontal; n, nasal; prf, prefrontal.	FIGURE 12. Photographs of the holotype skull of Melanosuchus fisheri (MCNC-243; 1-4) and the skull and associated lower jaw assignable to Caimaninae aff. Melanosuchus fisheri (AMU-CURS-234, 5-8). 1, skull in dorsal view. 2, close-up of the sutures between the frontal, prefrontals and posterior portion of nasals. Compare to interpretative drawing in Figure 4.1. 3, skull in left lateral view. 4, skull in occipital view. 5, 6, skull in dorsal and ventral view. 7, 8, lower jaw in dorsal and ventral view. Abbreviations: f, frontal; n, nasal; prf, prefrontal.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE3FFB8FC96F94FFAEBF8B0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342658/files/figure.png	https://doi.org/10.5281/zenodo.13342658	FIGURE 13. Photographs (1, 3, 4-6) and interpretative drawing (2) of the holotype skull and associated lower jaw remains (UNEFM-CIAAP-1297) (3) of Mourasuchus arendsi. 1, 2, skull in dorsal view. 3, right mandibular ramus in dorsal view. 4-6, Fragment of left mandibular ramus in dorsal (4), medial (5) and lateral (6) view. Abbreviations: f, frontal; j, jugal; la, lacrimal; mx, maxilla; n, nasal; p, parietal; pmx, premaxilla; po, postorbital; prf, prefrontal; pt, pterygoid; q, quadrate; qj, quadratojugal; so, supraoccipital; sq, squamosal.	FIGURE 13. Photographs (1, 3, 4-6) and interpretative drawing (2) of the holotype skull and associated lower jaw remains (UNEFM-CIAAP-1297) (3) of Mourasuchus arendsi. 1, 2, skull in dorsal view. 3, right mandibular ramus in dorsal view. 4-6, Fragment of left mandibular ramus in dorsal (4), medial (5) and lateral (6) view. Abbreviations: f, frontal; j, jugal; la, lacrimal; mx, maxilla; n, nasal; p, parietal; pmx, premaxilla; po, postorbital; prf, prefrontal; pt, pterygoid; q, quadrate; qj, quadratojugal; so, supraoccipital; sq, squamosal.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE3FFB8FC96F94FFAEBF8B0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342660/files/figure.png	https://doi.org/10.5281/zenodo.13342660	FIGURE 14. Photograph without (1) and with superimposed interpretative drawing (2) of the skull roof of holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in left dorsolateral view. Abbreviations: f, frontal; mc, medial crest on parietal; p, parietal; po, postorbital; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra.	FIGURE 14. Photograph without (1) and with superimposed interpretative drawing (2) of the skull roof of holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in left dorsolateral view. Abbreviations: f, frontal; mc, medial crest on parietal; p, parietal; po, postorbital; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE3FFB8FC96F94FFAEBF8B0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342671/files/figure.png	https://doi.org/10.5281/zenodo.13342671	FIGURE 15. Photograph without (1) and with superimposed interpretative drawing (2) of the right side of the posterior portion of holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in angled lateral view. Note clear notch of jugal and system of cracks (indicated by dotted white lines and arrows) leading to displacement of right posterolateral portion of skull. Abbreviations: j, jugal; po, postorbital; q, quadrate; qj, quadratojugal; sq, squamosal.	FIGURE 15. Photograph without (1) and with superimposed interpretative drawing (2) of the right side of the posterior portion of holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in angled lateral view. Note clear notch of jugal and system of cracks (indicated by dotted white lines and arrows) leading to displacement of right posterolateral portion of skull. Abbreviations: j, jugal; po, postorbital; q, quadrate; qj, quadratojugal; sq, squamosal.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE3FFB8FC96F94FFAEBF8B0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342673/files/figure.png	https://doi.org/10.5281/zenodo.13342673	FIGURE 16. Photograph (1) and interpretative drawing (2) of the holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in occipital view. Note dorsoventral compaction of specimen. Abbreviations: bo, basioccipital; eo, exoccipital; oc, occipital condyle; pt, pterygoid; q, quadrate; so, supraoccipital; sq, squamosal.	FIGURE 16. Photograph (1) and interpretative drawing (2) of the holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in occipital view. Note dorsoventral compaction of specimen. Abbreviations: bo, basioccipital; eo, exoccipital; oc, occipital condyle; pt, pterygoid; q, quadrate; so, supraoccipital; sq, squamosal.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE3FFB8FC96F94FFAEBF8B0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342675/files/figure.png	https://doi.org/10.5281/zenodo.13342675	FIGURE 17. Photographs of skull and lower jaw (MCNC-URU-110-72V) assignable to Mourasuchus arendsi. 1, dorsal view. 2, ventral view. 3, dorsal view. 4, medial view. Note that large parts of the specimen have been heavily reconstructed and all tooth alveoli are covered by plaster-cast teeth.	FIGURE 17. Photographs of skull and lower jaw (MCNC-URU-110-72V) assignable to Mourasuchus arendsi. 1, dorsal view. 2, ventral view. 3, dorsal view. 4, medial view. Note that large parts of the specimen have been heavily reconstructed and all tooth alveoli are covered by plaster-cast teeth.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFE3FFB8FC96F94FFAEBF8B0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342677/files/figure.png	https://doi.org/10.5281/zenodo.13342677	FIGURE 18. Photographs and interpretative drawing of weathered posterior skull portion (UNEFM-VF-03) and large skull part (AMU-CURS-768) of Mourasuchus arendsi. 1, 2, incomplete skull in dorsal view. 3, 4, incomplete skull in occipital view. 5, 6, large porterior skull part in dorsal and ventral view. Note squamosal eminences and posterior median ridge on parietal in UNEFM-VF-03 and both, the squamosal eminences and the knobs in front of the orbits in AMU-CURS-768. Abbreviations: eo, exoccipital f, frontal; mx, maxilla; oc, occipital condyle; ok, ornamental knob on prefrontal; pa, parietal; po, postorbital; pt, pterygoid; q, quadrate; se, squamosal eminences; so, supraoccipital; sof, suborbital fenestra; sq, squamosal; stf, supratemporal fenestra.	FIGURE 18. Photographs and interpretative drawing of weathered posterior skull portion (UNEFM-VF-03) and large skull part (AMU-CURS-768) of Mourasuchus arendsi. 1, 2, incomplete skull in dorsal view. 3, 4, incomplete skull in occipital view. 5, 6, large porterior skull part in dorsal and ventral view. Note squamosal eminences and posterior median ridge on parietal in UNEFM-VF-03 and both, the squamosal eminences and the knobs in front of the orbits in AMU-CURS-768. Abbreviations: eo, exoccipital f, frontal; mx, maxilla; oc, occipital condyle; ok, ornamental knob on prefrontal; pa, parietal; po, postorbital; pt, pterygoid; q, quadrate; se, squamosal eminences; so, supraoccipital; sof, suborbital fenestra; sq, squamosal; stf, supratemporal fenestra.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFF8FFB9FEFAFF37FDD8FA17.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342655/files/figure.png	https://doi.org/10.5281/zenodo.13342655	FIGURE 12. Photographs of the holotype skull of Melanosuchus fisheri (MCNC-243; 1-4) and the skull and associated lower jaw assignable to Caimaninae aff. Melanosuchus fisheri (AMU-CURS-234, 5-8). 1, skull in dorsal view. 2, close-up of the sutures between the frontal, prefrontals and posterior portion of nasals. Compare to interpretative drawing in Figure 4.1. 3, skull in left lateral view. 4, skull in occipital view. 5, 6, skull in dorsal and ventral view. 7, 8, lower jaw in dorsal and ventral view. Abbreviations: f, frontal; n, nasal; prf, prefrontal.	FIGURE 12. Photographs of the holotype skull of Melanosuchus fisheri (MCNC-243; 1-4) and the skull and associated lower jaw assignable to Caimaninae aff. Melanosuchus fisheri (AMU-CURS-234, 5-8). 1, skull in dorsal view. 2, close-up of the sutures between the frontal, prefrontals and posterior portion of nasals. Compare to interpretative drawing in Figure 4.1. 3, skull in left lateral view. 4, skull in occipital view. 5, 6, skull in dorsal and ventral view. 7, 8, lower jaw in dorsal and ventral view. Abbreviations: f, frontal; n, nasal; prf, prefrontal.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFF8FFB1FEF2F9A1FDC6F901.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342658/files/figure.png	https://doi.org/10.5281/zenodo.13342658	FIGURE 13. Photographs (1, 3, 4-6) and interpretative drawing (2) of the holotype skull and associated lower jaw remains (UNEFM-CIAAP-1297) (3) of Mourasuchus arendsi. 1, 2, skull in dorsal view. 3, right mandibular ramus in dorsal view. 4-6, Fragment of left mandibular ramus in dorsal (4), medial (5) and lateral (6) view. Abbreviations: f, frontal; j, jugal; la, lacrimal; mx, maxilla; n, nasal; p, parietal; pmx, premaxilla; po, postorbital; prf, prefrontal; pt, pterygoid; q, quadrate; qj, quadratojugal; so, supraoccipital; sq, squamosal.	FIGURE 13. Photographs (1, 3, 4-6) and interpretative drawing (2) of the holotype skull and associated lower jaw remains (UNEFM-CIAAP-1297) (3) of Mourasuchus arendsi. 1, 2, skull in dorsal view. 3, right mandibular ramus in dorsal view. 4-6, Fragment of left mandibular ramus in dorsal (4), medial (5) and lateral (6) view. Abbreviations: f, frontal; j, jugal; la, lacrimal; mx, maxilla; n, nasal; p, parietal; pmx, premaxilla; po, postorbital; prf, prefrontal; pt, pterygoid; q, quadrate; qj, quadratojugal; so, supraoccipital; sq, squamosal.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFF8FFB1FEF2F9A1FDC6F901.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342660/files/figure.png	https://doi.org/10.5281/zenodo.13342660	FIGURE 14. Photograph without (1) and with superimposed interpretative drawing (2) of the skull roof of holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in left dorsolateral view. Abbreviations: f, frontal; mc, medial crest on parietal; p, parietal; po, postorbital; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra.	FIGURE 14. Photograph without (1) and with superimposed interpretative drawing (2) of the skull roof of holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in left dorsolateral view. Abbreviations: f, frontal; mc, medial crest on parietal; p, parietal; po, postorbital; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFF8FFB1FEF2F9A1FDC6F901.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342671/files/figure.png	https://doi.org/10.5281/zenodo.13342671	FIGURE 15. Photograph without (1) and with superimposed interpretative drawing (2) of the right side of the posterior portion of holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in angled lateral view. Note clear notch of jugal and system of cracks (indicated by dotted white lines and arrows) leading to displacement of right posterolateral portion of skull. Abbreviations: j, jugal; po, postorbital; q, quadrate; qj, quadratojugal; sq, squamosal.	FIGURE 15. Photograph without (1) and with superimposed interpretative drawing (2) of the right side of the posterior portion of holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in angled lateral view. Note clear notch of jugal and system of cracks (indicated by dotted white lines and arrows) leading to displacement of right posterolateral portion of skull. Abbreviations: j, jugal; po, postorbital; q, quadrate; qj, quadratojugal; sq, squamosal.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFF8FFB1FEF2F9A1FDC6F901.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342673/files/figure.png	https://doi.org/10.5281/zenodo.13342673	FIGURE 16. Photograph (1) and interpretative drawing (2) of the holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in occipital view. Note dorsoventral compaction of specimen. Abbreviations: bo, basioccipital; eo, exoccipital; oc, occipital condyle; pt, pterygoid; q, quadrate; so, supraoccipital; sq, squamosal.	FIGURE 16. Photograph (1) and interpretative drawing (2) of the holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in occipital view. Note dorsoventral compaction of specimen. Abbreviations: bo, basioccipital; eo, exoccipital; oc, occipital condyle; pt, pterygoid; q, quadrate; so, supraoccipital; sq, squamosal.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFF8FFB1FEF2F9A1FDC6F901.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342675/files/figure.png	https://doi.org/10.5281/zenodo.13342675	FIGURE 17. Photographs of skull and lower jaw (MCNC-URU-110-72V) assignable to Mourasuchus arendsi. 1, dorsal view. 2, ventral view. 3, dorsal view. 4, medial view. Note that large parts of the specimen have been heavily reconstructed and all tooth alveoli are covered by plaster-cast teeth.	FIGURE 17. Photographs of skull and lower jaw (MCNC-URU-110-72V) assignable to Mourasuchus arendsi. 1, dorsal view. 2, ventral view. 3, dorsal view. 4, medial view. Note that large parts of the specimen have been heavily reconstructed and all tooth alveoli are covered by plaster-cast teeth.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFF8FFB1FEF2F9A1FDC6F901.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342677/files/figure.png	https://doi.org/10.5281/zenodo.13342677	FIGURE 18. Photographs and interpretative drawing of weathered posterior skull portion (UNEFM-VF-03) and large skull part (AMU-CURS-768) of Mourasuchus arendsi. 1, 2, incomplete skull in dorsal view. 3, 4, incomplete skull in occipital view. 5, 6, large porterior skull part in dorsal and ventral view. Note squamosal eminences and posterior median ridge on parietal in UNEFM-VF-03 and both, the squamosal eminences and the knobs in front of the orbits in AMU-CURS-768. Abbreviations: eo, exoccipital f, frontal; mx, maxilla; oc, occipital condyle; ok, ornamental knob on prefrontal; pa, parietal; po, postorbital; pt, pterygoid; q, quadrate; se, squamosal eminences; so, supraoccipital; sof, suborbital fenestra; sq, squamosal; stf, supratemporal fenestra.	FIGURE 18. Photographs and interpretative drawing of weathered posterior skull portion (UNEFM-VF-03) and large skull part (AMU-CURS-768) of Mourasuchus arendsi. 1, 2, incomplete skull in dorsal view. 3, 4, incomplete skull in occipital view. 5, 6, large porterior skull part in dorsal and ventral view. Note squamosal eminences and posterior median ridge on parietal in UNEFM-VF-03 and both, the squamosal eminences and the knobs in front of the orbits in AMU-CURS-768. Abbreviations: eo, exoccipital f, frontal; mx, maxilla; oc, occipital condyle; ok, ornamental knob on prefrontal; pa, parietal; po, postorbital; pt, pterygoid; q, quadrate; se, squamosal eminences; so, supraoccipital; sof, suborbital fenestra; sq, squamosal; stf, supratemporal fenestra.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFF8FFB1FEF2F9A1FDC6F901.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342681/files/figure.png	https://doi.org/10.5281/zenodo.13342681	FIGURE 19. Photographs and interpretative drawings of the posterior skull portion and orbitofrontal region as well as additional fragments (possibly jugal and lower jaw fragments) of Mourasuchus arendsi (AMU-CURS-218). 1, 2, skull fragment in dorsal view. Note squamosal eminences and orbital bony excrescences. 3, 4, skull fragment in occipital view. 5-9, skull fragments (partially from jugals?) found associated with the larger skull portions. Abbreviations: bo, basioccipital; eo, exoccipital; f, frontal; j, jugal; la, lacrimal; oc, occipital condyle; o, orbit, ok, orbital knob; p, parietal; po, postorbital; prf, prefrontal; pt, pterygoid; q, quadrate; qj, quadratojugal; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra.	FIGURE 19. Photographs and interpretative drawings of the posterior skull portion and orbitofrontal region as well as additional fragments (possibly jugal and lower jaw fragments) of Mourasuchus arendsi (AMU-CURS-218). 1, 2, skull fragment in dorsal view. Note squamosal eminences and orbital bony excrescences. 3, 4, skull fragment in occipital view. 5-9, skull fragments (partially from jugals?) found associated with the larger skull portions. Abbreviations: bo, basioccipital; eo, exoccipital; f, frontal; j, jugal; la, lacrimal; oc, occipital condyle; o, orbit, ok, orbital knob; p, parietal; po, postorbital; prf, prefrontal; pt, pterygoid; q, quadrate; qj, quadratojugal; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFF7FFB6FF0BFD61FBC0FA44.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342875/files/figure.png	https://doi.org/10.5281/zenodo.13342875	FIGURE 24. Photographs of skull of holotype (1-5: UNEFM-CIAAP-1369; associated lower jaw not shown) and paratypes UNEFM-CIAAP 1445 (6) and AMU-CURS-135 (7) of Purussaurus mirandai. 1-3, holotype skull in dorsal (1), ventral (2) and angled rostral view (3); the latter is not to scale. 4, 5, skull fragment labelled as “quadrate” of UNEFM-CIAAP-1369, which possibly constitutes a proximal fragment of the left quadrate/quadratojugal complex of the holotype skull. 6, right lower jaw in dorsal view. 7, largely unprepared skull and attached left and right lower jaw rami in dorsal view (picture courtesy: Jorge Moreno, Colombia).	FIGURE 24. Photographs of skull of holotype (1-5: UNEFM-CIAAP-1369; associated lower jaw not shown) and paratypes UNEFM-CIAAP 1445 (6) and AMU-CURS-135 (7) of Purussaurus mirandai. 1-3, holotype skull in dorsal (1), ventral (2) and angled rostral view (3); the latter is not to scale. 4, 5, skull fragment labelled as “quadrate” of UNEFM-CIAAP-1369, which possibly constitutes a proximal fragment of the left quadrate/quadratojugal complex of the holotype skull. 6, right lower jaw in dorsal view. 7, largely unprepared skull and attached left and right lower jaw rami in dorsal view (picture courtesy: Jorge Moreno, Colombia).	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFF7FFB6FF0BFD61FBC0FA44.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342877/files/figure.png	https://doi.org/10.5281/zenodo.13342877	FIGURE 25. Photographs of skull and jaw material of Purussaurus. 1, right dentary fragment (MCNC-URU-115-72V) in dorsal view; 2-23, skull and lower jaw material belonging to several different individuals currently accessioned under a single collection number (MCNC-URU-158-72V). 2-3, anterior part of skull (electronically assembled to represent life position) in dorsal and ventral view. Only the right premaxilla and maxilla (2-4) were shown as part of the paratype series of P. mirandai by (Aguilera et al., 2006). 5, right part of skull table in dorsal view. 6, left part of skull table in lateral view. 7, isolated tooth. 8, 9, left quadrate in dorsal and ventral view. 10, right quadrate in dorsal view. 11, right ectopterygoid in posterolateral view. 12, lower jaw fragment in medial view with alveoli. 13, right jugal in lateral view. 14, 15, articulars with retroarticular processes in dorsal view. 16, 17, pterygoids? 18-21, lower jaw elements. 18, possible anterior fragment of left surangular in ventral view? 19, posterior fragment of surangular in lateral view? 20, fragment of right angular in medial view? 21, fragment of right surangular in medial view? 22, smaller skull table in the assemblage also assignable to Purussaurus in dorsal view. 23, anterior portion of lower jaw, initially referred to and figured as MCNC-URU-157-72V by (Aguilera, 2004).	FIGURE 25. Photographs of skull and jaw material of Purussaurus. 1, right dentary fragment (MCNC-URU-115-72V) in dorsal view; 2-23, skull and lower jaw material belonging to several different individuals currently accessioned under a single collection number (MCNC-URU-158-72V). 2-3, anterior part of skull (electronically assembled to represent life position) in dorsal and ventral view. Only the right premaxilla and maxilla (2-4) were shown as part of the paratype series of P. mirandai by (Aguilera et al., 2006). 5, right part of skull table in dorsal view. 6, left part of skull table in lateral view. 7, isolated tooth. 8, 9, left quadrate in dorsal and ventral view. 10, right quadrate in dorsal view. 11, right ectopterygoid in posterolateral view. 12, lower jaw fragment in medial view with alveoli. 13, right jugal in lateral view. 14, 15, articulars with retroarticular processes in dorsal view. 16, 17, pterygoids? 18-21, lower jaw elements. 18, possible anterior fragment of left surangular in ventral view? 19, posterior fragment of surangular in lateral view? 20, fragment of right angular in medial view? 21, fragment of right surangular in medial view? 22, smaller skull table in the assemblage also assignable to Purussaurus in dorsal view. 23, anterior portion of lower jaw, initially referred to and figured as MCNC-URU-157-72V by (Aguilera, 2004).	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFF7FF8CFC93FA4EFE63F931.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342740/files/figure.png	https://doi.org/10.5281/zenodo.13342740	FIGURE 26. Photographs of specimens referable to Purussaurus cf. P. mirandai. 1, referred specimen AMU-CURS- 057, right and left dentaries in dorsal view. 2, posterior skull fragment UNEFM-CIAAP-1368/1372 in dorsal view. 3, 4, premaxillae of UNEFM-CIAAP-1367 in dorsal and ventral view. 5, three isolated teeth of UNEFM-CIAAP-1367. 6, lower jaw of AMU-CURS-541 in dorsal view.	FIGURE 26. Photographs of specimens referable to Purussaurus cf. P. mirandai. 1, referred specimen AMU-CURS- 057, right and left dentaries in dorsal view. 2, posterior skull fragment UNEFM-CIAAP-1368/1372 in dorsal view. 3, 4, premaxillae of UNEFM-CIAAP-1367 in dorsal and ventral view. 5, three isolated teeth of UNEFM-CIAAP-1367. 6, lower jaw of AMU-CURS-541 in dorsal view.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFF7FF8CFC93FA4EFE63F931.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342750/files/figure.png	https://doi.org/10.5281/zenodo.13342750	FIGURE 27. Photographs of lower jaw material of Purussaurus cf. P. mirandai in the show room of Museo Paleontológico Urumaco. 1, right mandibular ramus in lateral view (AMU-CURS-685). 2, lower jaw in dorsal view (MCN- USB no number).	FIGURE 27. Photographs of lower jaw material of Purussaurus cf. P. mirandai in the show room of Museo Paleontológico Urumaco. 1, right mandibular ramus in lateral view (AMU-CURS-685). 2, lower jaw in dorsal view (MCN- USB no number).	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFF7FF8CFC93FA4EFE63F931.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342762/files/figure.png	https://doi.org/10.5281/zenodo.13342762	FIGURE 28. Photographs of isolated right premaxilla of Purussaurus cf. P. mirandai (AMU-CURS-602). 1, specimen prior to collection in the field (dorsal view). 2-4, surface scan model of specimen (taken with an Artec Spider Surface Scanner) in (2) dorsal, (3) ventral, and (4) lateral view.	FIGURE 28. Photographs of isolated right premaxilla of Purussaurus cf. P. mirandai (AMU-CURS-602). 1, specimen prior to collection in the field (dorsal view). 2-4, surface scan model of specimen (taken with an Artec Spider Surface Scanner) in (2) dorsal, (3) ventral, and (4) lateral view.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFF7FF8CFC93FA4EFE63F931.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342769/files/figure.png	https://doi.org/10.5281/zenodo.13342769	FIGURE 29. Photographs of associated cranial material (AMU-CURS-528) of Purussaurus cf. P. mirandai. 1-2, right premaxilla in dorsal (1) and ventral (2) view. 3-4, right jugal in lateral (3) and medial (4) view. 5-6, right ectopterygoid in ventral (5) and dorsal (6) view. 7-8, left ectopterygoid in ventral (7) and dorsal (8) view. 9-10, dentary fragment in external (9) and internal (10) view. 11, isolated teeth (note different scale bar).	FIGURE 29. Photographs of associated cranial material (AMU-CURS-528) of Purussaurus cf. P. mirandai. 1-2, right premaxilla in dorsal (1) and ventral (2) view. 3-4, right jugal in lateral (3) and medial (4) view. 5-6, right ectopterygoid in ventral (5) and dorsal (6) view. 7-8, left ectopterygoid in ventral (7) and dorsal (8) view. 9-10, dentary fragment in external (9) and internal (10) view. 11, isolated teeth (note different scale bar).	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFC2FF9AFCBEFAD9FF6DFC84.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342658/files/figure.png	https://doi.org/10.5281/zenodo.13342658	FIGURE 13. Photographs (1, 3, 4-6) and interpretative drawing (2) of the holotype skull and associated lower jaw remains (UNEFM-CIAAP-1297) (3) of Mourasuchus arendsi. 1, 2, skull in dorsal view. 3, right mandibular ramus in dorsal view. 4-6, Fragment of left mandibular ramus in dorsal (4), medial (5) and lateral (6) view. Abbreviations: f, frontal; j, jugal; la, lacrimal; mx, maxilla; n, nasal; p, parietal; pmx, premaxilla; po, postorbital; prf, prefrontal; pt, pterygoid; q, quadrate; qj, quadratojugal; so, supraoccipital; sq, squamosal.	FIGURE 13. Photographs (1, 3, 4-6) and interpretative drawing (2) of the holotype skull and associated lower jaw remains (UNEFM-CIAAP-1297) (3) of Mourasuchus arendsi. 1, 2, skull in dorsal view. 3, right mandibular ramus in dorsal view. 4-6, Fragment of left mandibular ramus in dorsal (4), medial (5) and lateral (6) view. Abbreviations: f, frontal; j, jugal; la, lacrimal; mx, maxilla; n, nasal; p, parietal; pmx, premaxilla; po, postorbital; prf, prefrontal; pt, pterygoid; q, quadrate; qj, quadratojugal; so, supraoccipital; sq, squamosal.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFC2FF9AFCBEFAD9FF6DFC84.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342660/files/figure.png	https://doi.org/10.5281/zenodo.13342660	FIGURE 14. Photograph without (1) and with superimposed interpretative drawing (2) of the skull roof of holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in left dorsolateral view. Abbreviations: f, frontal; mc, medial crest on parietal; p, parietal; po, postorbital; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra.	FIGURE 14. Photograph without (1) and with superimposed interpretative drawing (2) of the skull roof of holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in left dorsolateral view. Abbreviations: f, frontal; mc, medial crest on parietal; p, parietal; po, postorbital; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFC2FF9AFCBEFAD9FF6DFC84.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342671/files/figure.png	https://doi.org/10.5281/zenodo.13342671	FIGURE 15. Photograph without (1) and with superimposed interpretative drawing (2) of the right side of the posterior portion of holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in angled lateral view. Note clear notch of jugal and system of cracks (indicated by dotted white lines and arrows) leading to displacement of right posterolateral portion of skull. Abbreviations: j, jugal; po, postorbital; q, quadrate; qj, quadratojugal; sq, squamosal.	FIGURE 15. Photograph without (1) and with superimposed interpretative drawing (2) of the right side of the posterior portion of holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in angled lateral view. Note clear notch of jugal and system of cracks (indicated by dotted white lines and arrows) leading to displacement of right posterolateral portion of skull. Abbreviations: j, jugal; po, postorbital; q, quadrate; qj, quadratojugal; sq, squamosal.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFC2FF9AFCBEFAD9FF6DFC84.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342673/files/figure.png	https://doi.org/10.5281/zenodo.13342673	FIGURE 16. Photograph (1) and interpretative drawing (2) of the holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in occipital view. Note dorsoventral compaction of specimen. Abbreviations: bo, basioccipital; eo, exoccipital; oc, occipital condyle; pt, pterygoid; q, quadrate; so, supraoccipital; sq, squamosal.	FIGURE 16. Photograph (1) and interpretative drawing (2) of the holotype skull (UNEFM-CIAAP-1297) of Mourasuchus arendsi in occipital view. Note dorsoventral compaction of specimen. Abbreviations: bo, basioccipital; eo, exoccipital; oc, occipital condyle; pt, pterygoid; q, quadrate; so, supraoccipital; sq, squamosal.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFC2FF9AFCBEFAD9FF6DFC84.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342681/files/figure.png	https://doi.org/10.5281/zenodo.13342681	FIGURE 19. Photographs and interpretative drawings of the posterior skull portion and orbitofrontal region as well as additional fragments (possibly jugal and lower jaw fragments) of Mourasuchus arendsi (AMU-CURS-218). 1, 2, skull fragment in dorsal view. Note squamosal eminences and orbital bony excrescences. 3, 4, skull fragment in occipital view. 5-9, skull fragments (partially from jugals?) found associated with the larger skull portions. Abbreviations: bo, basioccipital; eo, exoccipital; f, frontal; j, jugal; la, lacrimal; oc, occipital condyle; o, orbit, ok, orbital knob; p, parietal; po, postorbital; prf, prefrontal; pt, pterygoid; q, quadrate; qj, quadratojugal; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra.	FIGURE 19. Photographs and interpretative drawings of the posterior skull portion and orbitofrontal region as well as additional fragments (possibly jugal and lower jaw fragments) of Mourasuchus arendsi (AMU-CURS-218). 1, 2, skull fragment in dorsal view. Note squamosal eminences and orbital bony excrescences. 3, 4, skull fragment in occipital view. 5-9, skull fragments (partially from jugals?) found associated with the larger skull portions. Abbreviations: bo, basioccipital; eo, exoccipital; f, frontal; j, jugal; la, lacrimal; oc, occipital condyle; o, orbit, ok, orbital knob; p, parietal; po, postorbital; prf, prefrontal; pt, pterygoid; q, quadrate; qj, quadratojugal; so, supraoccipital; sq, squamosal; stf, supratemporal fenestra.	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
03EBF65BFFC2FF9AFCBEFAD9FF6DFC84.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/13342877/files/figure.png	https://doi.org/10.5281/zenodo.13342877	FIGURE 25. Photographs of skull and jaw material of Purussaurus. 1, right dentary fragment (MCNC-URU-115-72V) in dorsal view; 2-23, skull and lower jaw material belonging to several different individuals currently accessioned under a single collection number (MCNC-URU-158-72V). 2-3, anterior part of skull (electronically assembled to represent life position) in dorsal and ventral view. Only the right premaxilla and maxilla (2-4) were shown as part of the paratype series of P. mirandai by (Aguilera et al., 2006). 5, right part of skull table in dorsal view. 6, left part of skull table in lateral view. 7, isolated tooth. 8, 9, left quadrate in dorsal and ventral view. 10, right quadrate in dorsal view. 11, right ectopterygoid in posterolateral view. 12, lower jaw fragment in medial view with alveoli. 13, right jugal in lateral view. 14, 15, articulars with retroarticular processes in dorsal view. 16, 17, pterygoids? 18-21, lower jaw elements. 18, possible anterior fragment of left surangular in ventral view? 19, posterior fragment of surangular in lateral view? 20, fragment of right angular in medial view? 21, fragment of right surangular in medial view? 22, smaller skull table in the assemblage also assignable to Purussaurus in dorsal view. 23, anterior portion of lower jaw, initially referred to and figured as MCNC-URU-157-72V by (Aguilera, 2004).	FIGURE 25. Photographs of skull and jaw material of Purussaurus. 1, right dentary fragment (MCNC-URU-115-72V) in dorsal view; 2-23, skull and lower jaw material belonging to several different individuals currently accessioned under a single collection number (MCNC-URU-158-72V). 2-3, anterior part of skull (electronically assembled to represent life position) in dorsal and ventral view. Only the right premaxilla and maxilla (2-4) were shown as part of the paratype series of P. mirandai by (Aguilera et al., 2006). 5, right part of skull table in dorsal view. 6, left part of skull table in lateral view. 7, isolated tooth. 8, 9, left quadrate in dorsal and ventral view. 10, right quadrate in dorsal view. 11, right ectopterygoid in posterolateral view. 12, lower jaw fragment in medial view with alveoli. 13, right jugal in lateral view. 14, 15, articulars with retroarticular processes in dorsal view. 16, 17, pterygoids? 18-21, lower jaw elements. 18, possible anterior fragment of left surangular in ventral view? 19, posterior fragment of surangular in lateral view? 20, fragment of right angular in medial view? 21, fragment of right surangular in medial view? 22, smaller skull table in the assemblage also assignable to Purussaurus in dorsal view. 23, anterior portion of lower jaw, initially referred to and figured as MCNC-URU-157-72V by (Aguilera, 2004).	2016-11-30	Scheyer, TM;Delfino, M		Zenodo	biologists	Scheyer, TM;Delfino, M			
