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Texoceros altidens

Mammalia - Artiodactyla - Antilocapridae

Taxonomy
Merycodus altidens was named by Matthew (1924). Its type locality is Aphelops Draw Quarries, which is in a Hemphillian terrestrial horizon in the Snake Creek Formation of Nebraska.

It was recombined as Capromeryx altidens by Hesse (1935), Hesse (1936) and Stirton (1938); it was recombined as Texoceros altidens by Frick (1937), Dalquest (1983) and Janis and Manning (1998).

Synonyms
Synonymy list
YearName and author
1924Merycodus altidens Matthew
1928Dorcameryx optimae Reed and Longnecker
1935Capromeryx altidens Hesse p. 308
1935Capromeryx texanus Hesse p. 311 figs. 4, 5B
1936Capromeryx altidens Hesse
1937Texoceros altidens Frick
1937Texoceros texanus Frick
1938Capromeryx altidens Stirton
1983Texoceros altidens Dalquest
1998Texoceros altidens Janis and Manning

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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
RankNameAuthor
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
orderArtiodactyla()
Ruminantiamorpha
Ruminantia(Scopoli 1777)
Pecora()
familyAntilocapridaeOwen 1841
genusTexoceros
speciesaltidens()

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
C. J. Hesse 1935 (Capromeryx texanus)Intermediate in size between Merycodus necatus and Capromeryx altidens; jaw not shortened as in C. minor and C. mexicana (Chandler, 1916, p. 115); premolars not as high crowned as in the known species of Capromeryx, but higher crowned than in any described species of iMerycodus; ramus slender in outline as in Merycodus; but slightly larger.