Thompson No. 1 (Cretaceous of the United States)

Also known as UCMP V-5920

Where: Niobrara County, Wyoming (43.0° N, 104.5° W: paleocoordinates 49.5° N, 79.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Lance Formation, Lancian (70.6 - 66.0 Ma)

Environment/lithology: terrestrial

Reposited in the UCMP

Primary reference: W. A. Clemens. 1964. Fossil mammals of the type Lance Formation, Wyoming. Part I. Introduction and Marsupialia. University of California Publications in Geological Sciences 48:1-105 [J. Alroy/J. Alroy/J. Alroy]more details

PaleoDB collection 14625: authorized by John Alroy, entered by John Alroy on 26.07.1994, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876 guitarfish
Mammalia
 Multituberculata - Cimolomyidae
Meniscoessus robustus Marsh 1889 multituberculate
 Multituberculata - Cimolodontidae
Cimolodon nitidus Marsh 1889 multituberculate
Reptilia
 Crocodylia - Alligatoridae
Brachychampsa montana Gilmore 1911 crocodilian
 Loricata -
"Leidyosuchus sternbergi" = Borealosuchus sternbergii
"Leidyosuchus sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian