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Copemys pisinnus
Taxonomy
Copemys pisinnus was named by Wilson (1968). Its type specimen is UMMP V55819, a mandible (mand. with m1-and m2), 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 was recombined as Tregomys pisinnus by Dalquest et al. (1996).
It was recombined as Tregomys pisinnus by Dalquest et al. (1996).
Synonymy list
Year | Name and author |
---|---|
1968 | Copemys pisinnus Wilson p. 120 figs. textfig. 17 d-e |
1996 | Tregomys pisinnus Dalquest et al. |
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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 pisinnus Wilson 1968
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Diagnosis
Reference | Diagnosis | |
---|---|---|
R. L. Wilson 1968 | small cricetid (table 18) with medial anteroconid and moderate alternation of metaconid and protoconid on m1; a relatively
small round metaconid attaches low to the medial mure by a thin ridge, being nearly isolated from the protoconid; m2 with small anteroconid and mesolophid; m2 as wide as m1 ; lower molars with long oval roots, the posterior root of m1 nearly as wide as transverse diameter of the tooth. |