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Mbiresaurus raathi

Reptilia

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
YearName and author
2022Mbiresaurus raathi Griffin et al. p. 314

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
classReptilia
RankNameAuthor
subclassEureptilia()
Romeriida
Diapsida()
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Eusaurischia
Sauropodomorpha(Huene 1932)
genusMbiresaurus
speciesraathi

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
ReferenceDiagnosis
C. T. Griffin et al. 2022Mbiresaurus 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
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Created: 2017-04-17 15:16:03
Modified: 2017-04-17 15:16:03
Source: subc = subclass, c = class, subp = subphylum
References: Carroll 1988, Hendy et al. 2009

Age range: Carnian or 237.00000 to 228.00000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Carnian237.0 - 228.0Zimbabwe (Mashonaland Central) Mbiresaurus raathi (type locality: 228330 228331 228332 228333)