Massacre Rocks (Pleistocene of the United States)

Also known as IMNH 85002

Where: Power County, Idaho (42.8° N, 112.9° W: paleocoordinates 43.2° N, 111.2° W)

• coordinate based on political unit

• small collection-level geographic resolution

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

• said to be Sangamonian

Environment/lithology: terrestrial

Primary reference: H. G. McDonald. 1998. Idaho Museum of Natural History Occasional Paper 36:156-172 [J. Alroy/J. Alroy]more details

PaleoDB collection 20612: authorized by John Alroy, entered by John Alroy on 13.10.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• NISP 123
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Mammalia
 Perissodactyla - Equidae
Equus sp.
Equus sp. Linnaeus 1758 horse
 Artiodactyla - Camelidae
Camelops hesternus
Camelops hesternus Leidy 1873 camel
 Artiodactyla - Bovidae
Bison cf. antiquus, Bison latifrons
Bison cf. antiquus Leidy 1852 bison
Bison latifrons Harlan 1825 bison
 Artiodactyla - Cervidae
Odocoileus sp.
Odocoileus sp. Rafinesque 1832 New World deer
 Carnivora - Canidae
Canis latrans
Canis latrans Say 1823 coyote
 Carnivora - Felidae
Smilodon fatalis
Smilodon fatalis Leidy 1868 saber-toothed cat
 Proboscidea - Elephantidae
cf. Mammuthus sp.
cf. Mammuthus sp. Brookes 1828 mammoth
 Proboscidea - Mammutidae
cf. Mammut americanum
cf. Mammut americanum Kerr 1792 American mastodon
  - Mylodontidae
Paramylodon harlani
Paramylodon harlani Owen 1840 Harlan's ground sloth
 Megatherioidea - Megalonychidae
Megalonyx jeffersonii
Megalonyx jeffersonii Desmarest 1822 Jefferson's ground sloth