Alternative combinations: Palaeocastor 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
- Fossorcastor 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
• Miocene of United States (1: Texas collection)
• Harrisonian of United States (3: Nebraska)
• Arikareean of United States (1: South Dakota)
• Oligocene of United States (6: South Dakota)
Total: 11 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.