Old Crow River (Lower OCR 12) (Pleistocene of Canada)

Also known as Unit 1b

Where: Yukon, Canada (68.2° N, 140.0° W: paleocoordinates 68.3° N, 139.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Irvingtonian (1.8 - 0.3 Ma)

• said to be Illinoian

Environment/lithology: terrestrial

Primary reference: A. V. Jopling, W. N. Irving, and B. F. Beebe. 1981. Stratigraphic, Sedimentological and Faunal Evidence for the Occurrence of Pre-Sangamonian Artefacts in Northern Yukon. Arctic 34(1):3-33 [J. Alroy/J. Alroy/M. Uhen]more details

PaleoDB collection 20434: authorized by John Alroy, entered by John Alroy on 26.03.1995

Creative Commons license: CC BY (attribution)

Taxonomic list

• underlies Unit 2
Mammalia
 Lagomorpha - Ochotonidae
Ochotona princeps Richardson 1828 American pika
Ochotona cf. whartoni Guthrie and Matthews 1971 pika
 Lagomorpha - Leporidae
Lepus arcticus Ross 1819 hare
Lepus americanus Erxleben 1777 snowshoe hare
 Rodentia - Cricetidae
Microtus oeconomus Pallas 1776 tundra vole
questioned by Morlan 1984
Microtus xanthognathus Leach 1815 taiga vole
Microtus miurus Osgood 1901 vole
Dicrostonyx sp. Gloger 1841 lemming
"Dicrostonyx (Misothermus) sp."
Ondatra zibethicus Linnaeus 1766 muskrat
Lemmus sibiricus Ognev 1947 Siberian brown lemming
 Rodentia - Sciuridae
"Spermophilus parryii" = Urocitellus parryii
"Spermophilus parryii" = Urocitellus parryii Richardson 1825 arctic ground squirrel
 Rodentia - Castoridae
Castor canadensis Kuhl 1820 American beaver
Castoroides ohioensis Foster 1838 giant beaver
 Carnivora - Canidae
"Alopex cf. lagopus" = Vulpes lagopus, Canis cf. lupus
"Alopex cf. lagopus" = Vulpes lagopus Linnaeus 1758 Arctic fox
Canis cf. lupus Linnaeus 1758 gray wolf
 Perissodactyla - Equidae
Equus sp. Linnaeus 1758 horse
 Artiodactyla - Cervidae
Rangifer tarandus Linnaeus 1758 reindeer
Cervus ? elaphus Linnaeus 1758 red deer
 Proboscidea - Elephantidae
Mammuthus sp. Brookes 1828 mammoth