Oil Tank Lookout (UCMP V-5624) (Cretaceous of the United States)

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)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Collected by W. A. Clemens; 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

Purpose of describing collection: taxonomic analysis

PaleoDB collection 14601: 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
 Myliobatiformes - Dasyatidae
Myledaphus bipartitus2 Cope 1876 whiptail stingray
Actinopteri
 Lepisosteiformes - Lepisosteidae
Lepisosteus occidentalis2 Leidy 1856 gar
Osteichthyes
 Proteida - Batrachosauroididae
Opisthotriton kayi2 Auffenberg 1961 salamander
Reptilia
 Neornithischia - Ceratopsidae
cf. Triceratops sp.2 Marsh 1889 ceratopsid
 Crocodylia -
"Leidyosuchus sternbergi" = Borealosuchus sternbergii2, Brachychampsa montana2
"Leidyosuchus sternbergi" = Borealosuchus sternbergii2 Gilmore 1910 crocodilian
Brachychampsa montana2 Gilmore 1911 crocodilian
Mammalia
 Leptictida - Gypsonictopidae
Gypsonictops hypoconus1 Simpson 1927 eutherian
 Multituberculata - Cimolodontidae
Cimolodon nitidus Marsh 1889 multituberculate