Carnivora new to the Mascall Miocene fauna of eastern Oregon

Abstract

With the exception of the three species, Tephrocyon rurestris (Condon), Canis sp. and Cope's type Lutrictis? lycopotamicus no other carnivores have been recorded from the Mascall Miocene of the John Day Valley, Oregon, as a result of further collections obtained from these deposits since the earlier explorations in this area. During the past summer a field party from the California Institute of Technology was fortunate in securing the remains of two carnivores new to the Mascall assemblage. While the material is incomplete, records of these types are of interest and may be of significance in establishing a more accurate correlation of the Mascall fauna with Tertiary assemblages known from regions lying beyond the John Day Basin.