Big Toad Beach (Miocene to of the United States)

Also known as Shoreline (in part) UNSM Kh-112

Where: Keith County, Nebraska (41.2° N, 101.8° W: paleocoordinates 41.5° N, 99.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Ash Hollow Formation, Clarendonian to Clarendonian (12.5 - 9.4 Ma)

Environment/lithology: terrestrial

Reposited in the UNSM

Primary reference: M. B. Leite. 1990. Stratigraphy and mammalian paleontology of the Ash Hollow Formation (upper Miocene) on the north shore of Lake McConaughy, Keith County, Nebraska. Contributions to Geology, University of Wyoming 28(1):1-29 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 18065: authorized by John Alroy, entered by John Alroy on 05.08.1992

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Artiodactyla - Camelidae
cf. Procamelus sp., Megatylopus cf. primaevus
cf. Procamelus sp. Leidy 1858 camel
Megatylopus cf. primaevus Patton 1969 camel
 Perissodactyla - Rhinocerotidae
Teleoceras cf. major
Teleoceras cf. major Hatcher 1894 rhinoceros
 Perissodactyla - Equidae
cf. Calippus sp., Hippotherium sp., Pseudhipparion sp.
cf. Calippus sp. Matthew and Stirton 1930 horse
"cf. Calippus (Grammohippus) sp.", size range of martini
Hippotherium sp. Kaup 1832 hipparionine horse
Pseudhipparion sp. Ameghino 1904 hipparionine horse