Bear Creek (Lower Titanotherium Beds) (Eocene of the United States)

Where: Shannon County, South Dakota (43.3° N, 102.5° W: paleocoordinates 44.6° N, 93.7° W)

• coordinate based on political unit

When: Chadron Formation, Chadronian (37.2 - 33.9 Ma)

• member-level stratigraphic resolution

Environment/lithology: terrestrial

Primary reference: H. F. Osborn. 1902. The four phyla of Oligocene titanotheres. Bulletin of the American Museum of Natural History 16(8):91-109 [J. Alroy/J. Alroy/T. Liebrecht]more details

PaleoDB collection 16899: authorized by John Alroy, entered by John Alroy on 15.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• relationship of unit to members of Clark and Beerbower 1967 unclear
Mammalia
 Perissodactyla - Brontotheriidae
Megacerops sp. Leidy 1870 brontothere