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Ochrotomys
Taxonomy
Ochrotomys was named by Osgood (1909) [named as a subgenus of Peromyscus by Osgood 1909; raised to genus level by Hooper 1958]. It is extant.
It was assigned to Muridae by Osgood (1909); to Cricetinae by Kurten and Anderson (1980); and to Cricetidae by Hooper (1958) and McKenna and Bell (1997).
It was assigned to Muridae by Osgood (1909); to Cricetinae by Kurten and Anderson (1980); and to Cricetidae by Hooper (1958) and McKenna and Bell (1997).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Ochrotomys Osgood |
| 1958 | Ochrotomys Hooper |
| 1980 | Ochrotomys Kurten and Anderson p. 247 |
| 1997 | Ochrotomys McKenna and Bell |
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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.
G. Ochrotomys Osgood 1909
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Ochrotomys nuttalli Harlan 1832 [golden mouse]
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Invalid names: Mus aureolus Audubon and Bachman 1841 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Osgood 1909 | Posterior palantine foramina situated farther back than in Peromyscus, being decidedly nearer to the interpterygoid fossa than to the posterior endings of the anterior palatine slits. Molariform teeth relatively wide, and with enamel folds much comptressed; tubercles relatively low; a tendency to development of a raised cingulum marked by subsidiary tubercles in the inner salient angles of M1 and M2; eneamel relatively thicker than in subgenus Peromyscys, the pattern as seen in partly worn teeth being much compressed both laterally and longitudinally, so that the folds of the two sides touch in almost all stages of wear, leaving five subtriangular islands of dentine in M1 and four in M2; lower molars similarly peculiar. |
Measurements
| part | N | mean |
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| Source: o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Ji et al. 2002, Hendy et al. 2009, Carroll 1988, Lillegraven 1979, Nowak 1999 | |||||
Age range
Maximum range based only on fossils: base of the Irvingtonian to the top of the Rancholabrean or 1.80000 to 0.01200 Ma
Minimum age of oldest fossil (stem group age): 0.3 Ma
Minimum age of oldest fossil (stem group age): 0.3 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Irvingtonian | USA (Florida) | O. nuttalli (20289) | |
| Rancholabrean | USA (Florida) | O. nuttalli (20491) | |
| Late/Upper Pleistocene | USA (Missouri) | Peromyscus nuttalli (93379) | |
| Late/Upper Pleistocene (interglacial) | USA (Florida) | O. nuttalli (20573 20594 20595) | |
| Late/Upper Pleistocene | USA (Florida) | O. nuttalli (154805) |