PBDB Collection

Urruty's Crossing (Eocene of the United States)

Also known as UCM 84126

Where: Johnson County, Wyoming (44.0° N, 106.6° W: paleocoordinates 48.5° N, 89.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial

Primary reference: P. Robinson and B. A. Williams. 1997. Species diversity, tooth size, and shape of Haplomylus (Condylarthra, Hyopsodontidae) from the Powder River Basin, northeastern Wyoming. Contributions to Geology, University of Wyoming 31(2):59-78 [J. Alroy/J. Alroy/P. Holroyd]more details

PaleoDB collection 15883: authorized by John Alroy, entered by John Alroy on 15.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• see Robinson and Williams 1997 for meter level

Show authors, comments, and common names

Mammalia
Macroscelidea - Apheliscidae	Haplomylus bozemanensis, Haplomylus speirianus Haplomylus bozemanensis Robinson and Williams 1997 elephant shrew Haplomylus speirianus Cope 1880 elephant shrew
Primates - Micromomyidae	"Micromomys willwoodensis" = Dryomomys willwoodensis¹, "Tinimomys loomisi" = Tinimomys graybulliensis¹ "Micromomys willwoodensis" = Dryomomys willwoodensis¹ Rose and Bown 1982 primate "Tinimomys loomisi" = Tinimomys graybulliensis¹ Szalay 1974 primate
Primates - Paromomyidae	Ignacius graybullianus², Simpsonlemur sp.² Ignacius graybullianus² Bown and Rose 1976 primate Simpsonlemur sp.² Robinson and Ivy 1994 primate forms "B" and "C"

¹Alroy 2002; ²Robinson and Ivy 1994