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Caseosaurus
Taxonomy
Caseosaurus was named by Hunt et al. (1998).
It was synonymized subjectively with Chindesaurus by Langer (2004).
It was assigned to Herrerasauridae by Hunt et al. (1998); and to Dinosauriformes by Nesbitt et al. (2007).
It was synonymized subjectively with Chindesaurus by Langer (2004).
It was assigned to Herrerasauridae by Hunt et al. (1998); and to Dinosauriformes by Nesbitt et al. (2007).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1998 | Caseosaurus Hunt et al. p. 530 fig. 3 |
| 2007 | Caseosaurus Nesbitt et al. pp. 225-226 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. P. Hunt et al. 1998 | Herrerasaur whose ilium differs from Staurikosaurus and Herrerasaurus in possessing: (1) an elongate and dorsoventrally narrow posterior blade; (2) a narrow ridge on the lateral margin that extends from the anterodorsal margin of the acetabulum to the anterodorsal anterior spine (senu Novas, 1993); (3) a highly reduced brevis fossa; and (4) a semicircular margin dorsal to the acetabulum; differs from Chindesaurus bryansmalli in possessing a less deep brevis shelf which does not extend to the posterior margin, a lateral longitudinal ridge (for sacral rib articulation) which is placed more ventrally and a much thinner (less than half) posterior blade in dorsal view. |