Where: White Pine County, Nevada (39.4° N, 114.6° W: paleocoordinates 39.4° N, 114.6° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Late/Upper Pleistocene (0.1 - 0.0 Ma)
• two mid-Holocene radiocarbon dates on bear bones are rejected by Emslie and Czaplewski (1985) and the cave is believed to have been "sealed since at least the close of the Pleistocene"; Emslie and Mead (2020) report uncorrected 14C date for Ursus from BC-1 of 22,321+/-110 and calibrated range in calendar years BP of 27,011–26,217
• bed-level stratigraphic resolution
Environment/lithology: cave; siltstone
Size class: macrofossils
Collected by S. D. Emslie in 1982; reposited in the LACM
Collection methods: surface (float),
• bones were surface collected in place and not excavated, and are thought to have "eroded from [nearby] deposits relatively recently"
Primary reference: S. D. Emslie and N. J. Czaplewski. 1985. A new record of giant short-faced bear, Arctodus simus, from western North America with a re-evaluation of its paleobiology. Contributions in Science, Natural History Museum of Los Angeles County 371:1-12 [J. Alroy/J. Alroy]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 93278: authorized by John Alroy, entered by John Alroy on 12.01.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Ovis canadensis Shaw 1804 bighorn sheep | |
Ursus americanus Pallas 1780 black bear
Ursus cf. arctos Linnaeus 1758 brown bear
Arctodus simus Cope 1879 giant short-faced bear |