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16 August 2010 New genus and two new species of Pleistocene oryzomyines (Cricetidae: Sigmodontinae) from Bonaire, Netherlands Antilles
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Abstract

A collection of about 500 molars from 5 Pleistocene localities on the island of Bonaire (off the coast of Venezuela), previously identified as Thomasomys sp., is reidentified as representing a new genus and 2 new species of oryzomyine rodents based on comparative examination and phylogenetic analysis of morphological characters. The material from 1 of the 5 localities is distinguished by its smaller size and several discrete characters; a larger species is represented in the other 4 localities. In addition, a single edentulous dentary represents a different species that is described as an indeterminate genus and species of Sigmodontinae.

Jelle S. Zijlstra, Paulina A. Madern, and Lars W. van den Hoek Ostende "New genus and two new species of Pleistocene oryzomyines (Cricetidae: Sigmodontinae) from Bonaire, Netherlands Antilles," Journal of Mammalogy 91(4), 860-873, (16 August 2010). https://doi.org/10.1644/09-MAMM-A-208.1
Received: 24 June 2009; Accepted: 1 March 2010; Published: 16 August 2010
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