Mammalia - Rodentia - Castoridae
Alternative combinations: Fossorcastor fossor, Steneofiber fossor
Synonyms: Palaeocastor magnus Romer and McCormack 1928, Palaeocastor major Stirton 1935, Palaeocastor simplicidens Matthew 1907, Steneofiber simplicidens Matthew 1907
Full reference: O. A. Peterson. 1905. Description of New Rodents And Discussion Of The Origin of Daemonelix. Memoirs of the Carnegie Museum 2(4):139-202
Belongs to Palaeocastor according to W. W. Korth and J. X. Samuels 2015
See also Macdonald 1970, Martin 1987, Matthew 1907, Peterson 1905, Romer and McCormack 1928, Stirton 1935, Storer 2002 and Xu 1996
Sister taxa: Palaeocastor nebrascensis, Palaeocastor peninsulatus, Palaeocastor wahlerti
Type specimens:
- Palaeocastor fossor: CM 1217, a partial skeleton (cranium, the vertebral column, including eleven caudals, (the extreme tip of the tail is missing), both clavicles, and a fairly complete set of ribs). Its type locality is Pine Ridge Escarpment, which is in a Harrisonian terrestrial horizon in the Harrison Formation of Nebraska.
- Palaeocastor magnus: Its type locality is Raw Hide Buttes (Lower Harrison), which is in a Harrisonian terrestrial horizon in Wyoming.
- Palaeocastor major:
- Steneofiber simplicidens: Its type locality is AMNH Rosebud 8, which is in an Arikareean terrestrial horizon in South Dakota.
Ecology: amphibious browser
Distribution:
• Miocene of United States (1: Texas collection)
• Harrisonian of United States (5: Nebraska, Wyoming)
• Arikareean of United States (3: Oregon, South Dakota)
• Oligocene of United States (6: South Dakota)
Total: 15 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.