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Mosasaurus horridus

Reptilia - Mosasauridae

Taxonomy
Mosasaurus horridus was named by Williston (1895). Its type specimen is KU 1034 and is a 3D body fossil. Its type locality is Cheyenne River in Custer County, which is in a Campanian marine shale in the Pierre Shale Formation of South Dakota.

It was synonymized subjectively with Mosasaurus missouriensis by Caldwell and Bell (2005).

Sister species lacking formal opinion data
M. anceps

Synonymy list
YearName and author
1895Mosasaurus horridus Williston p. 166
1902Mosasaurus horridus Hay p. 466
1930Mosasaurus horridus Hay p. 262

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
RankNameAuthor
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
—Squamata()
familyMosasauridae
subfamilyMosasaurinaeGervais 1853
genusMosasaurus
specieshorridus

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.

†Mosasaurus horridus Williston 1895
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Diagnosis
No diagnoses are available