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Peromyscus cochrani
Taxonomy
Peromyscus cochrani was named by Hibbard (1955). Its type specimen is UMMP 27542, a mandible (right ramus with M1-M3), 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.
Synonymy list
Year | Name and author |
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1955 | Peromyscus cochrani Hibbard |
1980 | Peromyscus cochrani Kurten and Anderson p. 244 |
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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.
†Peromyscus cochrani Hibbard 1955
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Diagnosis
Reference | Diagnosis | |
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C. W. Hibbard 1955 | mouse belonging to the subgenus Peromyscus the size of P. leucopus noveboracensis (Fischer). The dental characters are inter- mediate between Peromyscus cragini Hibbard, from the Cudahy fauna of Meade County, Kansas, and the Recent species P . leucopus and P . manicu- latus. Internal and external re-entrant valleys between the cusps are broader in P. cochrani than in P. leucopus and P. maniculatus. Mesostylid, ectostylid, mesostyle, and enterostyle are not as well developed as in Recent species of the subgenus Peromyscus. No lophids are present on the lower teeth, and the mesolophs on the upper molars are either only slightly developed or absent. |
Measurements
No measurements are available
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Source: g = genus, o = order, subc = subclass, c = class, subp = subphylum | |||||
References: Ji et al. 2002, Hendy et al. 2009, Nowak 1999, Samuels and Van Valkenburgh 2008, Carroll 1988, Lillegraven 1979 |
Age range: base of the Irvingtonian to the top of the Late/Upper Pleistocene or 1.80000 to 0.01170 Ma
Collections (3 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Irvingtonian | USA (Oklahoma) | Peromyscus cochrani (20309) | |
Irvingtonian | USA (Kansas) | Peromyscus cochrani (20295) | |
Late/Upper Pleistocene (interglacial) | USA (Kansas) | Peromyscus cochrani (type locality: 20605) |