Jones Canyon (Miocene of the United States)

Where: Brown County, Nebraska (42.7° N, 100.0° W: paleocoordinates 43.3° N, 96.7° W)

• coordinate based on political unit

When: Crookston Bridge Member (Valentine Formation), Barstovian (16.0 - 13.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: M. F. Skinner. 1968. A Pliocene chalicothere from Nebraska, and the distribution of chalicotheres in the late Tertiary of North America. American Museum Novitates 2346:1-24 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 18216: authorized by John Alroy, entered by John Alroy on 05.08.1992, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

 Rodentia - Castoridae
Eucastor sp. Allen 1877 beaver
Eucastor tortus Leidy 1858 beaver
 Perissodactyla - Chalicotheriidae
Chalicotheriidae indet. Gill 1872 chalicothere
not Moropus according to Coombs 1998
 Perissodactyla - Equidae
Hipparionini indet.1 Quinn 1955 hipparionine horse
Pseudhipparion retrusum Cope 1889 hipparionine horse
Equini indet.1 Quinn 1955 horse
 Carnivora - Canidae
Leptocyon vafer3 Leidy 1858 canine
 Proboscidea - Proboscidea
Proboscidea indet. proboscidean
 Ungulata - Merycoidodontidae
"Merychyus medius" = Ustatochoerus medius2
"Merychyus medius" = Ustatochoerus medius2 Leidy 1858 oreodont
 Ungulata - Camelidae
Camelidae indet.1 Gray 1821 camel
Aepycamelus cf. robustus1 Leidy 1858 camel