文章基本信息

标题：A new species of Agnotocastor (Rodentia, Castoridae) from the early Oligocene of Wyoming. American Museum novitates ; no. 2485
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作者：Emry, Robert J.
期刊名称：American Museum Novitates
印刷版ISSN：0003-0082
电子版ISSN：1937-352X
出版年度：1972
卷号：1972
语种：
出版社：American Museum of Natural History
摘要："Two specimens from early Oligocene deposits of the Flagstaff Rim area, Natrona County, Wyoming, represent a new species of beaver, Agnotocastor galushai. Although this is the oldest recorded form that can be definitely referred to the Castoridae, it is already similar to later species and sheds very little additional light on the ancestry of the family"--P. [1].