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Copemys shotwelli
Taxonomy
Tregomys shotwelli was named by Wilson (1968) [genotype]. Its type specimen is UMMP V55787, a mandible (sin. with complete dentition), and it is a 3D body fossil. Its type locality is WaKeeny (UM-K6-59), which is in a Clarendonian channel sandstone/claystone in the Ogallala Formation of Kansas. It is the type species of Tregomys.
It was recombined as Copemys shotwelli by Lindsay (1972).
It was recombined as Copemys shotwelli by Lindsay (1972).
Synonymy list
| Year | Name and author |
|---|---|
| 1968 | Tregomys shotwelli Wilson p. 119 |
| 1972 | Copemys shotwelli Lindsay |
| 1990 | Tregomys shotwelli Voorhies |
| 1995 | Tregomys shotwelli Sutton and Korth |
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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.
†Copemys shotwelli Wilson 1968
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Wilson 1968 | 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. |