Uptegrove (Neogene of the United States)

Also known as UNSM Cn-101

Where: Cheyenne County, Nebraska (41.1° N, 103.0° W: paleocoordinates 41.4° N, 101.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Hemphillian (10.3 - 4.9 Ma)

Environment/lithology: terrestrial; lithology not reported

Reposited in the UNSM

Primary reference: M. R. Voorhies. 1984. "Citellus kimballensis" Kent and "Propliophenacomys uptegrovensis" Martin, Supposed Miocene Rodents, Are Recent Intrusives. Journal of Paleontology 58(1):254-258 [J. Alroy/J. Alroy/J. Ju]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 18441: authorized by John Alroy, entered by John Alroy on 05.08.1992, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• "superposition" of this fauna above Oshkosh and Greenwood Canyon indicated by Tedford et al. 1987 Fig. 6.2 appears to be based on fission track dates and biochronology
there are NO legitimate small mammals from this locality; ALL such records are recent intrusives
bogus list of Kent 1967: "Citellus kimballensis" type Thomomys sp. "Perognathus sp."
Mammalia
 Megatherioidea - Megalonychidae
Megalonyx cf. curvidens4 Matthew 1924 edentate
 Proboscidea - Gomphotheriidae
Gomphotheriidae indet.4 Hay 1922 gomphothere
 Carnivora - Canidae
Borophagus sp.1 Cope 1892 bone-crushing dog
 Carnivora - Felidae
Machairodus tanneri2 Martin and Schultz 1975 cat
includes type of "M. coloradensis tanneri" of Martin and Schultz 1975
 Perissodactyla - Equidae
Nannippus lenticularis Cope 1893 hipparionine horse
Dinohippus cf. leidyanus4 Osborn 1918 horse
 Perissodactyla - Rhinocerotidae
Teleoceras fossiger3 Cope 1878 rhinoceros
 Artiodactyla - Camelidae
"Hemiauchenia cf. vera" = Pleiolama vera, Megatylopus cf. gigas
"Hemiauchenia cf. vera" = Pleiolama vera Matthew 1909 camel
Megatylopus cf. gigas Matthew and Cook 1909 camel
 Rodentia - Mylagaulidae
Ceratogaulus sp.4 Matthew 1902 rodent