An Early Hemphillian Occurrence of Castor (Castoridae) from the Rattlesnake Formation of Oregon

@inproceedings{Samuels2011AnEH,
  title={An Early Hemphillian Occurrence of Castor (Castoridae) from the Rattlesnake Formation of Oregon},
  author={Joshua X. Samuels and John K. Zancanella},
  booktitle={Journal of Paleontology},
  year={2011}
}
Abstract Castor, the extant beaver, is an important member of North American and Eurasian communities, altering ecosystems and landscapes wherever it occurs. Castor has a fossil record extending back to the late Miocene in Europe, Asia, and North America. The origin and early evolution of this genus is unclear but it likely originated in Eurasia and subsequently dispersed to North America from Asia in the late Miocene. A new record of Castor from the Rattlesnake Formation of Oregon represents… 
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