South Elk Creek (Diatryma steini type locality) (Eocene of the United States)

Where: Big Horn County, Wyoming (44.3° N, 108.1° W: paleocoordinates 49.0° N, 90.9° W)

• coordinate based on nearby landmark

When: Willwood Formation, Wasatchian (55.8 - 50.3 Ma)

• "Lower Eocene, Gray Bull horizon, Wasatch formation"

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by W. Stein in 1916; reposited in the AMNH

Primary reference: W. D. Matthew and W. Granger. 1917. The skeleton of Diatryma, a gigantic bird from the Lower Eocene of Wyoming. Bulletin of the American Museum of Natural History 37(11):307-326 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 85438: authorized by John Alroy, entered by John Alroy on 18.12.2008, edited by Philip Mannion, Roger Benson and Terri Cleary

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Macroscelidea - Apheliscidae
"Parapheliscus wapitiensis n. gen. n. sp." = Apheliscus wapitiensis2
"Parapheliscus wapitiensis n. gen. n. sp." = Apheliscus wapitiensis2 Van Valen 1967 elephant shrew
AMNH 16935 - holotype (right P3-M1)
Reptilia
 Testudines - Trionychidae
"Eugenichelys robertemryi n. gen. n. sp." = Axestemys byssinus3
"Eugenichelys robertemryi n. gen. n. sp." = Axestemys byssinus3 Cope 1872 softshell turtle
USNM 12589, type specimen of Eugenichelys robertemryi, skull fragments, partial left dentary, left hyoplastron, right hypoplastron, left and right xiphiplastron; South Elk Creek, Big Horn County, Wyoming, USA; Wasatch Formation, Eocene (Wasatchian)
 Squamata - Anguidae
Melanosaurus maximus1 Gilmore 1928 squamates
AMNH 6167, several blocks of body scutes, with portion of dentary, coracoid, several vertebrae
Aves
 Diatrymiformes - Diatrymidae
"Diatryma steini n. sp." = Diatryma gigantea
"Diatryma steini n. sp." = Diatryma gigantea Cope 1876 bird