Schoenesmahl dyspepsia, gen. et, 2018

DISTINCTIVENESS OF S. DYSPEPSIA

The traditional association between S. dyspepsia with Ba. macrodactylus is plausible given their temporal and geographic co-occurrence, their similar size and the shared possession of very elongate hind limbs compared to their bodies ( Figs 29A, B). Even so, S. dyspepsia is demonstrably distinct from Ba. macrodactylus (see Diagnosis, above). Each of these taxa is generally similar in size to the Solnhofen squamates Ardeosaurus (SNSB-BSPG 1923 I 501; Fig. 30A), the PMU.R 58 specimen ( Fig. 30B), A. digitatellus ( Fig. 30C) and E. schroederi ( Fig. 30D), but those taxa have less elongate hind limbs than either Ba. macrodactylus or S. dyspepsia . All of these taxa are much larger than P. bavarica ( Fig. 31A) and the cast of the holotype of A. brevipes ( Fig. 31B). The distinctiveness of the S. dyspepsia is demonstrated by details of the skull roofing bones, mandible and limb proportions. Although S. dyspepsia and Ba. macrodactylus share the possession of similarly elongate hind limbs as compared to their respective skulls ( Fig. 29), the proportions of the femora, zeugopodia and pedes are different between the two taxa ( Table 1). The NHM PR 38006 specimen can be coded for 71 characters and SNSB-BSPG 1923 I 501 can be coded for 79 (Supporting Information, Appendices SI and SII). These two specimens have 42 characters for which they both may be coded and they are identical in all of those character states.

PHYLOGENY