Jackass Butte (UO 2404) ( of the United States)

Where: Owyhee County, Idaho (43.0° N, 118.0° W: paleocoordinates 43.1° N, 117.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Blancan (4.9 - 1.8 Ma)

Environment/lithology: terrestrial

Collection methods: bulk, sieve

Primary reference: J. A. Shotwell. 1970. Pliocene mammals of southeast Oregon and adjacent Idaho. Bulletin of the Museum of Natural History, University of Oregon 17:1-103 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 19913: authorized by John Alroy, entered by John Alroy on 26.03.1995

Creative Commons license: CC BY (attribution)

Taxonomic list

• section is is entirely reversed and is said to correspond biochronologically with Sand Point, but there is no direct stratigraphic correlation: Neville et al. 1979
Mammalia
 Rodentia - Cricetidae
Ondatra idahoensis1 Wilson 1933 muskrat
Ophiomys parvus n. sp. Wilson 1933 vole
see Hibbard and Zakrzewski 1967a
Mictomys vetus1 Wilson 1933 bog lemming
 Rodentia - Sciuridae
Spermophilus sp. Cuvier 1825 ground squirrel
 Rodentia - Castoridae
Castor californicus1 Kellogg 1911 beaver
 Rodentia - Erethizontidae
Erethizon bathygnathum Wilson 1935 North American porcupine
 Lagomorpha - Leporidae
Hypolagus furlongi Gazin 1934 rabbit
 Perissodactyla - Equidae
Equus idahoensis1 Merriam 1918 horse
 Tribosphenida - Soricidae
Soricidae indet. Fischer 1814 shrew
 Carnivora - Mustelidae
"Satherium piscinarium" = Lutra piscinaria1 Leidy 1873 otter
Trigonictis cookii Gazin 1934 mustelid carnivore
see also Ray et al. 1981
Trigonictis macrodon1 Cope 1868 mustelid carnivore
 Carnivora - Canidae
Canini indet.1 Fischer de Waldheim 1817 canine
Borophagus diversidens4 Cope 1892 bone-crushing dog
 Carnivora - Felidae
? Homotherium idahoensis Merriam 1918 cat
Puma lacustris1 Gazin 1933 cougar
 Xenarthra - Megalonychidae
Megalonyx sp.2 Harlan 1825 edentate
 Proboscidea - Gomphotheriidae
Stegomastodon mirificus Leidy 1858 gomphothere
 Proboscidea - Elephantidae
Mammuthus sp.3 Brookes 1828 mammoth
 Ungulata - Tayassuidae
Platygonus sp. Leconte 1848 peccary
 Ungulata - Camelidae
Gigantocamelus sp. Barbour and Schultz 1939 camel
Hemiauchenia sp. Gervais and Ameghino 1880 camel
 Ungulata - Cervidae
Cervus sp. Linnaeus 1758 deer