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A New Insectivore from the Clarkforkian (Earliest Eocene) of Wyoming
Kenneth D. Rose and Philip D. Gingerich
Journal of Mammalogy
Vol. 68, No. 1 (Feb., 1987), pp. 17-27
Published by: American Society of Mammalogists
Stable URL: http://www.jstor.org/stable/1381041
Page Count: 11
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We describe a new genus and species of insectivore based on two dentaries with nearly complete lower dentition from the Clarkforkian (earliest Eocene) of the Clark's Fork Basin, Wyoming. It is distinctive in having digitate lower incisors and exceptionally broad but relatively low-crowned molars, and it differs from all other insectivores in having a fully molariform lower last premolar. For these reasons, the new genus is placed in a new family, of which it is the only known member. This new taxon probably represents a divergent lineage of early Insectivora, perhaps more closely allied to the Nyctitheriidae than to other families.
Journal of Mammalogy © 1987 American Society of Mammalogists