French Creek (Eocene of the United States)

Where: Custer County, South Dakota (43.8° N, 103.1° W: paleocoordinates 45.1° N, 94.2° W)

• coordinate based on political unit

When: Chadronian (37.2 - 33.9 Ma)

Environment/lithology: terrestrial

Primary reference: E. L. Troxell. 1920. Entelodonts in the Marsh Collection; Part III. The larger genera and species. American Journal of Science 50(300):431-445 [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 16969: authorized by John Alroy, entered by John Alroy on 26.03.1995

Creative Commons license: CC BY (attribution)

Taxonomic list

• presumably this is in the Badlands
"Lower Oligocene"; "north bank of the Cheyenne River between French and Battle creeks"; French Creek is west of Battle Creek Canyon
Mammalia
 Perissodactyla - Brontotheriidae
Brontotheriidae indet.1 Marsh 1873 brontothere
 Perissodactyla - Hyracodontidae
Hyracodon sp. Leidy 1856 odd-toed ungulate
 Carnivora - Ursidae
Parictis dakotensis2 Clark 1936 bear
Chadron Fm., Stebbins Ranch between Battle and French Creeks, near Folsom, Custer Co.
 Ungulata - Entelodontidae
Archaeotherium marshi n. sp. Troxell 1920 even-toed ungulate
also reported by Sinclair 1922a and Scott 1940
? Megachoerus latidens n. sp.3 Troxell 1920 even-toed ungulate
from "Probably upper Brule... Cheyenne River, a few miles E. of Battle Creek, So. Dak."
 Ungulata - Protoceratidae
Heteromeryx dispar4 Matthew 1905 protoceratid
FMNH specimen from "Battle Creek Breaks, Custer Co." in Ahearn Mbr.