Carroll Rim (Oligocene of the United States)

Also known as JDNM-24

Where: Wheeler County, Oregon (44.9° N, 120.2° W: paleocoordinates 44.7° N, 109.1° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: lower Turtle Cove Member (John Day Formation), Whitneyan (33.3 - 30.8 Ma)

• said to be late Whitneyan

Environment/lithology: terrestrial

Primary reference: T. Fremd. 1994. John Day Basin paleontology field trip guide and road log: Society of Vertebrate Paleontology. John Day Fossil Beds National Monument 94-1 [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 17313: authorized by John Alroy, entered by John Alroy on 26.03.1995, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• "14 m below the sanidine tuff of the western facies member G" dated at 29.8 Ma (SCLF AA); this is NOT the same as Member G of the standard Turtle Cove section
Mammalia
 Rodentia - Eutypomyidae
Eutypomyidae indet. Miller and Gidley 1918 rodent
said to be new
 Perissodactyla - Rhinocerotidae
Diceratherium annectens Marsh 1873 rhinoceros
 Perissodactyla - Equidae
Miohippus sp. Marsh 1874 anchitheriine horse
 Ungulata - Agriochoeridae
Agriochoerus sp. Leidy 1850 agriochoerid
 Ungulata - Hypertragulidae
Hypertragulus sp. Cope 1874 ruminant
small