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Copemys

Mammalia - Rodentia - Cricetidae

Synonyms
Synonymy list
YearName and author
1936Copemys Wood
1959Miochomys Hoffmeister
1968Tregomys Wilson
1978Copemys Baskin p. 131
1990Tregomys Voorhies
1995Tregomys Sutton and Korth
1997Copemys McKenna and Bell
1997Miochomys McKenna and Bell

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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
Synapsida()
RankNameAuthor
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
Placentalia
EuarchontogliresMurphy et al. 2001
Glires()
orderRodentia
infraorderMyodontaSchaub 1958
superfamilyMuroideaIlliger 1811
familyCricetidaeFischer von Waldheim 1817
genusCopemys

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
A. E. Wood 1936Lower molars tending toward altenation of external and internal
cusps; central cusp apparently absent; posterior arm of protoconoid of m1 extended as crest to lingual margin of tooth; protoconoid free from metaconoid; no hypoconulid on m2, posterior cingulum arising from extemal border of hypoconid.
R. L. Wilson 1968 (Tregomys)A small cricetid with low-cusped, simple molars; m1 with medial anteroconids and subequal anterior cingula; metaconid and protoconid nearly opposite with the posterior side of the latter sloping farther posteriad; m2 sqaurish and realtively large, wider than m1; second lower molar with heavy cingulum on the anterolabial side; masseteric crests low, terminating anteriad at the level of the laterally positioned mental foramen; jaw relatively thin, the depth below m1 greater than the total length of the lower molars; m1 length less than 1.2 mm in well worn specimens; m3 relatively large with greatest transverse width nearly equal to other lower molars; roots on the lower molars long.