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Cemeterius monstrosus

Reptilia - Squamata

Taxonomy
Cemeterius monstrosus was named by Longrich et al. (2012). Its type specimen is USNM 25870, a mandible (right dentary), and it is a 3D body fossil. Its type locality is Graveyard Coulee (Late Cretaceous section), which is in a Maastrichtian fluvial horizon in the Hell Creek Formation of Montana. It is the type species of Cemeterius.

Synonymy list
YearName and author
2012Cemeterius monstrosus Longrich et al. fig. 1D

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
RankNameAuthor
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Lepidosauromorpha(Benton 1983)
superorderLepidosauria()
orderSquamata
Episquamata
ToxicoferaVidal and Hedges 2005
suborderAnguimorphaFürbringer 1900
Anguiformes
infraorderPlatynotaBaur 1890
genusCemeterius
speciesmonstrosus

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
ReferenceDiagnosis
N. R. Longrich et al. 2012a large platynotan distinguished by a massive jaw and short, robust, lingually expanded teeth lacking serrations