|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Rodentia - Cricetidae
It was reranked as Calomys (Bensonomys) by Baskin (1978), Dalquest (1980), Baskin (1986), Czaplewski (1987), Carranza-Castañeda and Walton (1992) and Korth (1994).
It was assigned to Cricetidae by Gazin (1942); to Cricetinae by Kurten and Anderson (1980); to Calomys by Baskin (1978), Dalquest (1980), Baskin (1986), Czaplewski (1987), Carranza-Castañeda and Walton (1992) and Korth (1994); and to Sigmodontinae by Kelly (2007).
|Year||Name and author|
|1939||Oryzomys pliocaenicus Hibbard|
|1942||Bensonomys Gazin p. 489|
|1978||Calomys (Bensonomys) Baskin p. 126|
|1980||Calomys (Bensonomys) Dalquest|
|1980||Bensonomys Kurten and Anderson p. 248|
|1986||Calomys (Bensonomys) Baskin|
|1987||Calomys (Bensonomys) Czaplewski|
|1992||Calomys (Bensonomys) Carranza-Castañeda and Walton p. 74|
|1994||Calomys (Bensonomys) Korth|
|2002||Bensonomys Martin et al.|
|2007||Bensonomys Kelly p. 126|
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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.
|C. L. Gazin 1942||Generic characters.-Near Eligmodontia with knoblike process at anterior extremity of masseteric crest on lower jaw, last lower cheek tooth reduced, and sulcus between capsular and coronoid processes.
Removed from Eligmodontia in having deeper lower jaw, dorsa11y placed mental foramen closer to process at extremity of masseteric crest, more brachydont cheek teeth, notch on anterior lobe of first lower chook tooth better developed, lower incisor more procumbent. Genotype - Eligmodontia arizonae Gidley.