Duncan Ranch (Lower) (Eocene of the United States)
Where: Fremont County, Wyoming (43.2° N, 108.2° W: paleocoordinates 47.0° N, 94.0° W)
• coordinate based on political unit
When: Aycross Formation, Bridgerian (50.3 - 46.2 Ma)
Environment/lithology: terrestrial
Primary reference: T. M. Bown. 1982. Geology, Paleontology, and Correlation of Eocene Volcaniclastic Rocks, Southeast Absaroka Range, Hot Springs County, Wyoming. United States Geological Survey Professional Paper 1201-A:A1-A75 [J. Alroy/J. Alroy/J. Marcot]more details
PaleoDB collection 16212: authorized by John Alroy, entered by John Alroy on 18.02.1993
Creative Commons license: CC BY (attribution)
Taxonomic list
• "more than a hundred feet lower" than upper Duncan Ranch
type area of Aycross Fm. (see Love 1939)
early Bridgerian (Bridger A?)
type area of Aycross Fm. (see Love 1939)
early Bridgerian (Bridger A?)
Show authors, comments, and common names
Mammalia | |
Isectolophidae indet. Peterson 1919 odd-toed ungulate | |
"Desmatotherium intermedius" = Helaletes intermedius
"Desmatotherium intermedius" = Helaletes intermedius Osborn et al. 1878 odd-toed ungulate | |
Palaeosyops cf. paludosus Leidy 1870 brontothere | |
Patriofelis sp. Leidy 1870 creodont |