Copemys longidens Hall 1930 (mouse)

Mammalia - Rodentia - Cricetidae

Alternative combination: Peromyscus longidens

Synonyms: Copemys niobrariensis Hoffmeister 1959, Miochomys niobrariensis Hoffmeister 1959

Full reference: E. R. Hall. 1930. Rodents and lagomorphs from the Barstow Beds of southern California. University of California Publications, Bulletin of the Department of Geological Sciences 19(13):313-318

Belongs to Copemys according to E. H. Lindsay 1972

See also Clark et al. 1964, Hall 1930 and Voorhies 1990

Sister taxa: Copemys barstowensis, Copemys esmeraldensis, Copemys lindsayi, Copemys loxodon, Copemys mariae, Copemys pagei, Copemys pisinnus, Copemys russelli, Copemys shotwelli, Copemys tenuis

Type specimens:

  • Copemys longidens: UCCVP 28502, a partial skull (with M1 and mandible dext. carrying complete dentition). Its type locality is Rodent Hill, which is in a Barstovian terrestrial horizon in the Barstow Formation of California.
  • Miochomys niobrariensis: UCMP 36103, a maxilla (fragment maxilla sin. with M1). Its type locality is Fort Niobrara, which is in a Barstovian terrestrial horizon in the Valentine Formation of Nebraska.

Ecology: ground dwelling herbivore


• Miocene of United States (20: California collections)

Total: 20 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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