Thomas Ranch (Oligocene of the United States)

Where: Niobrara County, Wyoming (42.9° N, 104.2° W: paleocoordinates 44.1° N, 96.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Brule Formation, Orellan (33.9 - 33.3 Ma)

• Brule, presumably Orellan because no Whitneyan collections are present in the area

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by C. W. Gilmore in 1932; reposited in the USNM

Primary reference: C. W. Gilmore. 1946. The osteology of the fossil turtle Testudo praeextans Lambe, with notes on other species of Testudo from the Oligocene of Wyoming. Proceedings of the United States National Museum 96(3199):293-310 [J. Alroy/M. Sommers/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 99850: authorized by John Alroy, entered by John Alroy on 25.11.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines - Testudinidae
"Testudo laticunea" = Gopherus laticuneus
"Testudo laticunea" = Gopherus laticuneus Cope 1873 gopher tortoise
U.N.S.M. No. 15854