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Merychyinae

Mammalia - Artiodactyla - Merycoidodontidae

Synonymy list
YearName and author
1945Merychyinae Simpson p. 149
1947Merychyinae Schultz and Falkenbach p. 168
2003Merychyinae Parris and Grandstaff p. 63
2007Merychyinae Stevens and Stevens p. 165

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
RankNameAuthor
Amniota
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
orderArtiodactyla()
suborderTylopoda()
superfamilyOreodontoidea
familyMerycoidodontidaeThorpe 1923
subfamilyMerychyinae
subfamilyMerychyinae

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. B. Schultz and C. H. Falkenbach 1947Oreodonts of small to medium size; skulls mesocephalic; occipital region showing much variation with the supraoccipital wings in- corporated into a fan-shaped occipital; orbits large for size of skull; tendency for slight retraction of the nasals (anterior tip above C/); tympanic bulla well inflated and large, with a round to somewhat flattened inferior surface; teeth moderately large, brachyodont to subhypsodont (all the teeth in Merychyinae are in reality brachyodont, and the terms subhypsodont and brachyodont used in this paper are strictly comparative terms), premolars with simple to complicated patterns, the latter type found in the later Miocene species; PLP3 with anterior intermediate crest and Pa with posterior intermediate crest.