Rainbow Butte (Eocene of the United States)

Also known as UCM 80065

Where: Natrona County, Wyoming (43.2° N, 107.1° W: paleocoordinates 46.9° N, 92.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Lost Cabin Member (Wind River Formation), Bridgerian (50.3 - 46.2 Ma)

• said to be Gardnerbuttean

Environment/lithology: terrestrial

Primary reference: R. K. Stucky. 1984. Revision of the Wind River faunas, early Eocene of central Wyoming. Part 5. Geology and biostratigraphy of the upper part of the Wind River Formation, northeastern Wind River Basin. Annals of Carnegie Museum 53(9):231-294 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 16397: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• NISP 11, excluding generically indeterminate records
 Testudines - Kinosternoidea
Xenochelys lostcabinensis2 Hutchison 1991 mud turtle
 Primates - Microsyopidae
Microsyops cf. scottianus Cope 1881 primate
 Primates - Omomyidae
Artimonius witteri1 Morris 1954 tarsier
 Primates - Notharctidae
Notharctus cf. robinsoni Gingerich 1979 primate
 Cimolesta - Coryphodontidae
Coryphodon sp. Owen 1845 pantodont
 Perissodactyla - Brontotheriidae
Eotitanops borealis1 Cope 1880 brontothere
 Perissodactyla -
Heptodon calciculus1 Cope 1880 odd-toed ungulate
 Ferae -
Palaeanodonta indet. Matthew 1918 placental
 Ungulata - Hyopsodontidae
Hyopsodus paulus Leidy 1870 condylarth
confirmed by Redline 1997
Hyopsodus cf. minusculus Leidy 1873 condylarth
confirmed by Redline 1997
 Ungulata - Diacodexeidae
Bunophorus sinclairi3 Guthrie 1966 even-toed ungulate
"B. sp. A"
 Acreodi - Mesonychidae
Mesonychidae indet. Cope 1875 condylarth
 Hyaenodonta - Hyaenodontidae
cf. Prototomus sp. Cope 1874 eutherian