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Mbiresaurus raathi
Taxonomy
Mbiresaurus raathi was named by Griffin et al. (2022). Its type specimen is NHMZ 2222, a partial skeleton, and it is a 3D body fossil. Its type locality is Transect A, Dande Communal Land, which is in a Carnian terrestrial siltstone/mudstone in the Pebbly Arkose Formation of Zimbabwe. It is the type species of Mbiresaurus.
Synonymy list
| Year | Name and author |
|---|---|
| 2022 | Mbiresaurus raathi Griffin et al. p. 314 |
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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.
†Mbiresaurus raathi Griffin et al. 2022
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. T. Griffin et al. 2022 | Mbiresaurus raathi differs from all other sauropodomorphs in the following combination of character states: frontal more than twice as anteroposteriorly long as mediolaterally wide; dorsal margin of the anterior portion of the dentary deflected ventrally; orbital margin of the postorbital projects into the orbit; postorbital fits into a slot in the frontal; slightly recurved dentary teeth with mesial and distal carinae and small denticles; at least 20 maxillary teeth; sacrum composed of three sacral vertebrae with a dorsosacral vertebra and two primordial sacral vertebrae; deltopectoral crest extends anteriorly at an angle of ~90° from the long axis of the humeral head in proximal view; width of the distal end of the humerus less than one-third the proximodistal length of the element; supra-acetabular crest of the ilium extends approximately two-thirds down (distal) the lateral side of the pubic peduncle; slightly concave ventral border of the iliac acetabular wall; anteroposteriorly short and dorsoventrally broad postacetabular process of the ilium with well-developed brevis shelf (autapomorphy); long axis of the femoral head almost parallel to the distal intercondylar line; olecranon process remains not fused to the ulna late in ontogeny (potential autapomorphy, evidence for ontogenetic variability) (Fig. 2 and Extended Data Fig. 9; see the Supplementary Information for extended differential diagnosis). |
Measurements
No measurements are available
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| Source: subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||