Tipton Butte (Eocene of the United States)

Where: Sweetwater County, Wyoming (41.7° N, 109.0° W: paleocoordinates 46.6° N, 92.6° W)

• coordinate based on political unit

When: Red Desert Member (Wasatch Formation), Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: C. L. Gazin. 1965. Early Eocene mammalian faunas and their environment in the vicinity of the Rock Springs Uplift, Wyoming. Wyoming Geological Association Guidebook 19:171-180 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 15846: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• SW 1/4 sec 23 T 20 N R 96 W
clearly in the Main Body based on map of Roehler 1969
about 25 - 30 ENE of Bitter Creek
Mammalia
 Condylarthra - Hyopsodontidae
Hyopsodus sp. Leidy 1870 condylarth
 Theriamorpha - Phenacodontidae
Meniscotherium chamense1 Cope 1874 condylarth
 Perissodactyla - Equidae
Equidae indet.1 Gray 1821 horse
 Theriamorpha -
Vulpavus sp. Marsh 1871 placental
"possibly V. asius" - based on Guthrie 1971, this could be V. australis or V. canavus
 Rodentia - Ischyromyidae
Paramys cf. excavatus Loomis 1907 rodent
 Primates - Microsyopidae
Microsyops sp.1 Leidy 1872 primate
 Primates - Notharctidae
Copelemur australotutus2 Beard 1988 primate
 Cimolesta - Esthonychidae
Esthonyx sp.1 Cope 1874 tillodont