Hermosa (Oligocene) (Oligocene of the United States)

Where: Custer County, South Dakota (43.8° N, 103.1° W: paleocoordinates 44.8° N, 95.5° W)

• coordinate based on political unit

When: Poleslide Member (Brule Formation), Whitneyan (33.3 - 30.8 Ma)

• "Protoceras beds"

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: M. R. Thorpe. 1920. New species of Oligocene (White River) Felidae. American Journal of Science 50(297):207-224 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 185937: authorized by Jonathan Marcot, entered by Jonathan Marcot on 24.05.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Carnivora - Nimravidae
Pogonodon cismontanus n. sp. Thorpe 1920 false sabre-tooth
misspelled as "Pogonodon cismontamus"
 Ungulata - Anthracotheriidae
Elomeryx armatus, Heptacodon gibbiceps n. sp., "Octacodon valens n. sp." = Heptacodon curtus
Elomeryx armatus Marsh 1894 anthracothere
Elomeryx armatus angustus, subsp. nov.
Heptacodon gibbiceps n. sp. Marsh 1894 anthracothere
"Octacodon valens n. sp." = Heptacodon curtus Marsh 1894 anthracothere