Flagstaff Rim VII (Eocene of the United States)

Where: Natrona County, Wyoming (43.2° N, 107.1° W: paleocoordinates 44.8° N, 98.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: White River Formation, Chadronian (37.2 - 33.9 Ma)

Environment/lithology: terrestrial

Primary reference: R. J. Emry. 1992. Mammalian Range Zones in the Chadronian White River Formation at Flagstaff Rim, Wyoming. In D. R. Prothero, W. A. Berggren (eds.), Eocene-Oligocene Climatic and Biotic Evolution 106-115 [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 16966: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• above 151 m, Ash G+50'
Mammalia
 Carnivora - Nimravidae
Dinictis sp., "Hoplophoneus mentalis" = Hoplophoneus primaevus1
Dinictis sp. Leidy 1854 false sabre-tooth
"Hoplophoneus mentalis" = Hoplophoneus primaevus1 Leidy and Owen 1851 false sabre-tooth
 Carnivora - Amphicyonidae
Brachyrhynchocyon sp.1 Scott and Jepsen 1936 bear-dog
 Carnivora - Canidae
Hesperocyon sp.1 Scott 1890 canid
 Perissodactyla - Equidae
Equidae indet.1 Gray 1821 horse
 Perissodactyla - Brontotheriidae
Brontotheriidae indet. Marsh 1873 brontothere
 Artiodactyla - Merycoidodontidae
Bathygenys sp. Douglass 1902 oreodont
 Artiodactyla - Protoceratidae
Pseudoprotoceras taylori Emry and Storer 1981 protoceratid
 Artiodactyla - Leptomerycidae
Leptomeryx speciosus Lambe 1908 ruminant
 Rodentia - Ischyromyidae
Ischyromys sp.1 Leidy 1856 rodent
 Rodentia - Cylindrodontidae
Cylindrodon solarborus2 Emry and Korth 1996 rodent
189 m level
 Lagomorpha - Leporidae
Palaeolagus temnodon Douglass 1902 rabbit