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Corosaurus alcovensis
Taxonomy
Corosaurus alcovensis was named by Case (1936) [This specimen is from the Alcova Limestone Fm, of the Chugwater Group, in Jackson Canyon nine miles southwest of Casper, Natrona County, Wyoming.]. Its type specimen is UW 5485, a partial skeleton (Skull and partial skeleton), and it is a 3D body fossil. It is the type species of Corosaurus.
Synonymy list
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Corosaurus alcovensis Case 1936
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| O. Rieppel 1998 | An eosauropterygian with a relatively short and unconstricted snout; postorbital region of skull subequal in length to preorbital region of skull; nasals elongated, only slightly shorter than frontals; upper temporal fossa subequal in size to orbit; frontals closely approaching the upper temporal fenestra; parietal skull table weakly constricted; mandibular symphysis weakly enforced; maxillary fang in anterior position; distinct coronoid process on lower jaw present; the posterior aspect of the dorsal tip of the neural spines distinctly broadened; sacral ribs fused to respective vertebrae; transverse processes on caudal vertebrae distinctly elongated; dorsal part of medial surface of ilium ornamented by densely packed tubercles; pubis of distinctive shape, with convex anterior and concave posterior margin; deltopectoral crest on humerus weakly developed; medial gastral rib element frequently with two-pronged lateral process. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Carroll 1988, Bush and Bambach 2015 | |||||