Translator Disclaimer
1 March 2013 Pipestoneomyidae, a New Family of Fossil Rodents (Mammalia) from the Duchesnean (Late Middle Eocene, Bartonian) to Orellan (Early Oligocene, Priabonian) of North America
William W. Korth, Robert J. Emry
Author Affiliations +
Abstract

Additional specimens of the problematical rodent Pipestoneomys Donahoe, 1956, have allowed for recognition of a new family, Pipestoneomyidae. A new genus and species of pipestoneomyid is recognized from the late middle Eocene (Duchesnean North American Land Mammal Age; Bartonian), Argorheomys septendrionalis, which is morphologically more primitive than Pipestoneomys and demonstrates that this new family has been distinct since the Duchesnean. The Pipestoneomyidae share a number of derived characters with the Geomorpha, especially the two-part inner layer of incisor enamel of the Eoymidae. The Pipestoneomyidae differ from the Eomyidae in lacking the basic “omega” pattern of the cheek teeth of the former, so are in the Eomyoidea as a distinct family.

William W. Korth and Robert J. Emry "Pipestoneomyidae, a New Family of Fossil Rodents (Mammalia) from the Duchesnean (Late Middle Eocene, Bartonian) to Orellan (Early Oligocene, Priabonian) of North America," Journal of Paleontology 87(2), 289-296, (1 March 2013). https://doi.org/10.1666/12-054R.1
Accepted: 1 September 2012; Published: 1 March 2013
JOURNAL ARTICLE
8 PAGES


Share
SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top