Mammalia - Rodentia - Castoridae
Synonym: Sigmogomphius Merriam 1896
Parent taxon: Nothodipoidini according to W. W. Korth 2008
See also Alroy 2002, Hay 1902, Kellogg 1910, Korth 2007, Korth 2002, McKenna and Bell 1997, Rybczynski 2007, Stirton 1935 and Stirton 1939
Sister taxa: Microdipoides, Nothodipoides, Temperocastor
Subtaxa: Eucastor malheurensis Eucastor tortus
Type: Castor (Eucastor) tortus
Ecology: amphibious browser
Distribution:
• Villafranchian of China (2 collections)
• Pliocene of China (1)
• Hemphillian of United States (1: Nebraska)
• Miocene of Canada (6: Saskatchewan), United States (53: California, Georgia, Kansas, Montana, Nebraska, Nevada, New Mexico, Oregon, South Dakota, Utah, Wyoming)
Total: 63 collections including 64 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.