Twelvemile Bonanza (Paleocene of the United States)

Also known as CM loc. 3683; KU-WY-136

Where: Sweetwater County, Wyoming (41.8° N, 108.6° W: paleocoordinates 47.6° N, 89.1° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Ti5 mammal zone, Fort Union Formation, Tiffanian (61.7 - 56.8 Ma)

• said to be from upper part of Fort Union Formation

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Primary reference: S. G. Mattingly, O. Sanisidro, and K. C. Beard. 2017. A new species of Carpolestes (Mammalia, Plesiadapoidea) from the late Paleocene of southern Wyoming: assessing changes in size and shape during the evolution of a key anatomical feature. Historical Biology [P. Holroyd/P. Holroyd/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 187515: authorized by Patricia Holroyd, entered by Patricia Holroyd on 31.07.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Primates - Carpolestidae
Carpolestes twelvemilensis n. sp. Mattingly et al. 2017 primate
 Macroscelidea - Apheliscidae
Phenacodaptes sp. Jepsen 1930 elephant shrew
 Ungulata - Prodinoceratidae
Probathyopsis sp. Simpson 1929 uintathere