Eucastor tortus Leidy 1858 (beaver)

Mammalia - Rodentia - Castoridae

Alternative combinations: Castor (Eucastor) tortus, Dipoides tortus

Full reference: J. Leidy. 1858. Notice of Remains of Extinct Vertebrata, from the Valley of the Niobrara River, Collected during the Exploring Expedition of 1857, in Nebraska, under the Command of Lieut. G. K. Warren, U. S. Top. Eng., by Dr. F. V. Hayden, Geologist to the Expedition. Proceedings of the Academy of Natural Sciences of Philadelphia 10:15-89

Belongs to Eucastor according to W. W. Korth 2008

See also Hay 1902, Leidy 1858, Matthew 1909, Matthew and Gidley 1904, Stirton 1935 and Voorhies 1990

Sister taxon: Eucastor malheurensis

Type specimen: USNM 11020, a partial skull (partial palate and rostrum with incisors and right and left P4-M3)

Ecology: amphibious browser


• Hemphillian of United States (1: Nebraska collection)

• Miocene of Canada (6: Saskatchewan), United States (27: Montana, Nebraska, New Mexico, South Dakota, Utah)

Total: 34 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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