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Oryzomys fossilis
Taxonomy
Oryzomys fossilis was named by Hibbard (1955). Its type specimen is 29271, a partial skull (Right mandible with incisor and m1-m3 (fig 6I), part of left mandible incisor and m1 (fig. 6J) and part of right maxillary with M1.), and it is a 3D body fossil. Its type locality is Jinglebob, which is in a Pleistocene terrestrial horizon in the Kingsdown Formation of Kansas.
It was synonymized subjectively with Oryzomys palustris by Kurten and Anderson (1980).
It was synonymized subjectively with Oryzomys palustris by Kurten and Anderson (1980).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1955 | Oryzomys fossilis Hibbard |
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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.
†Oryzomys fossilis Hibbard 1955
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. W. Hibbard 1955 | A rice rat the size of Oryzomys palustris texensis Allen, but with broader re-entrant valleys between the cusps. The stylids are not as well developed as in Recent specimens of O. palustris and O. couesi. The crescentic antercoentral enamel islands were not observed on the M2 and M3 in Oryzomys couesi (Alston). |
Measurements
No measurements are available
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| Source: o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Lillegraven 1979, Ji et al. 2002, Hendy et al. 2009, Nowak 1999 | |||||
Collections
No collection or age range data are available