Natural Trap Cave (Sangamonian) (Pleistocene of the United States)

Where: Big Horn County, Wyoming (45.0° N, 108.2° W: paleocoordinates 45.0° N, 108.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Late/Upper Pleistocene (0.1 - 0.0 Ma)

• FT date of 0.11 Ma on volcanic ash

• group of beds-level stratigraphic resolution

Environment/lithology: cave; lithology not reported

• "roof fall, eolian sediments, and bones" plus occasional "periods of rapid volcanic ash fall"

Size class: macrofossils

Collected in 1985

Collection methods: bulk, quarrying, sieve

• KUVP collection

•Sangamonian layer was apparently found after "the 1980 excavation" but no later than 1985

•"screen washing" apparently was only done with Sangamonian sediments

Primary reference: X. Wang and L. D. Martin. 1993. Natural Trap Cave. National Geographic Research & Exploration 9(4):422-435 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 20621: authorized by John Alroy, entered by John Alroy on 30.04.1994

Creative Commons license: CC BY (attribution)

Taxonomic list

• LARGE MAMMALS ONLY; small mammals are present, see Chorn et al. 1988 Kansas Acad Sci 7:7
Show authors, comments, and common names
Mammalia
 Perissodactyla - Equidae
Equus sp.
Equus sp. Linnaeus 1758 horse
 Artiodactyla - Bovidae
Ovis canadensis
Ovis canadensis Shaw 1804 bighorn sheep
described by Wang 1988
 Artiodactyla - Antilocapridae
Antilocapra americana
Antilocapra americana Ord 1815 pronghorn
mentioned as an indeterminate antilocaprid by Chorn et al. 1988
 Carnivora - Mustelidae
Mustela sp., Gulo gulo
Mustela sp. Linnaeus 1758 weasel
Gulo gulo Linnaeus 1758 wolverine
 Carnivora - Felidae
Lynx ? lynx, Miracinonyx studeri
Lynx ? lynx Linnaeus 1758 Eurasian lynx
Miracinonyx studeri Savage 1960 American cheetah
 Proboscidea - Elephantidae
Mammuthus sp.
Mammuthus sp. Brookes 1828 mammoth