Muddy Ridge (Eocene of the United States)
Where: Fremont County, Wyoming (43.2° N, 108.2° W: paleocoordinates 48.0° N, 91.4° W)
• coordinate based on political unit
When: Wind River Formation, Wasatchian (55.8 - 50.3 Ma)
Environment/lithology: terrestrial
Primary reference: W. R. Keefer and M. L. Troyer. 1964. Geology of the Shotgun Butte area, Fremont County, Wyoming. United States Geological Survey Bulletin 1157:1-123 [J. Alroy/J. Alroy/J. Ju]more details
PaleoDB collection 15996: authorized by John Alroy, entered by John Alroy on 30.04.1994
Creative Commons license: CC BY (attribution)
Taxonomic list
• this could be the MCZ "Muddy Creek" locality of Schoch 1986, from "late Wasatchian strata of the Wind River Formation... Wind River Basin" yielding Stylinodon mirus
Loveina zephyri Szalay 1976: MCZ from "Lost Cabin beds... Muddy Creek, 10 miles north of Pavillion, Wind River Basin" - type of "Tetonius barbeyi"
said to be "of Lost Cabin age"
Loveina zephyri Szalay 1976: MCZ from "Lost Cabin beds... Muddy Creek, 10 miles north of Pavillion, Wind River Basin" - type of "Tetonius barbeyi"
said to be "of Lost Cabin age"
Show authors, comments, and common names
Mammalia | |
"Cynodontomys sp." = Microsyops
"Cynodontomys sp." = Microsyops Leidy 1872 primate | |
Adapidae indet. Trouessart 1879 primate | |
Lambdotherium popoagicum Cope 1880 brontothere | |
"Heptodon brownorum" = Heptodon posticus
"Heptodon brownorum" = Heptodon posticus Cope 1882 odd-toed ungulate | |
Hyracotherium sp. Owen 1841 odd-toed ungulate | |
Ectocion sp. Cope 1882 condylarth
Phenacodus sp. Cope 1873 condylarth | |
Hyopsodus cf. mentalis Cope 1875 condylarth |