Journal of Mammalian Evolution

, Volume 8, Issue 4, pp 279–296 | Cite as

Comments on the Systematics and Classification of the Beavers (Rodentia, Castoridae)

  • William W. Korth


The systematics of the beavers (Castoridae) are reviewed and definitions are presented for each subfamilial group. Four subfamilies are recognized: primitive Agnotocastorinae (divided into two tribes, Agnotocastorini and Anchitheriomyini); burrowing beavers, Palaeocastorinae; giant beavers, Castoroidinae (containing two tribes, Castoroidini and Trogontheriini); and the Castorinae. The agnotocastorines are viewed as the ancestral group for all later subfamilies. The Palaeocastorinae is viewed as a side-branch, not ancestral or closely related to any of the later subfamilies. The Castorinae and Castoroidinae may represent a distinct clade united by dental features.

Phylogeny Systematics Classification Castoridae Beaver 


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Copyright information

© Plenum Publishing Corporation 2001

Authors and Affiliations

  1. 1.Rochester Institute of Vertebrate PaleontologyRochester
  2. 2.Department of Earth Science and Science EducationBuffalo State CollegeBuffalo

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