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Osmakasaurus

Reptilia

Taxonomy
Osmakasaurus was named by McDonald (2011).

It was assigned to Styracosterna by McDonald (2011); and to Iguanodontia by Herne et al. (2019).

Species
O. depressus

Synonymy list
YearName and author
2011Osmakasaurus McDonald p. 61
2019Osmakasaurus Herne et al. p. 579

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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
subclassEureptilia()
RankNameAuthor
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—Cerapoda
—Ornithopoda()
—Clypeodonta
—Iguanodontia()
genusOsmakasaurus

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.

G. †Osmakasaurus McDonald 2011
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†Osmakasaurus depressus Gilmore 1909
Diagnosis
ReferenceDiagnosis
A. T. McDonald 2011Basal styracosternan distinguished from all other iguanodontians by the following unique combination of characters: cranial end of preacetabular process of ilium modified into horizontal boot, straight dor- sal margin of ilium, dorsal margin of ilium thickens mediolaterally towards the M. iliocaudalis platform (Figs. 8A, B, E).