Arriaga Quarry (Miocene of the United States)

Also known as Unalaska Lake

Where: Aleutians West County, Alaska (53.9° N, 166.5° W: paleocoordinates 55.4° N, 163.2° W)

• coordinate based on unpublished field data

When: Dutch Harbor Member (Unalaska Formation), Aquitanian (23.0 - 20.4 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; conglomerate

Size class: macrofossils

Preservation: original phosphate

Primary reference: L. L. Jacobs, A. R. Fiorillo, R. Gangloff and A. Pasch. 2007. Desmostylian remains from Unalaska Island, Aleutian Chain, Alaska. Bulletin of Carnegie Museum of Natural History 39:189-202 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 67659: authorized by Mark Uhen, entered by Mark Uhen on 02.12.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

 Perissodactyla - Desmostylidae
Ounalashkastylus tomidai n. gen. n. sp.1
Ounalashkastylus tomidai n. gen. n. sp.1 Chiba et al. 2016 desmostylian
 Carnivora - Ursidae
cf. Kolponomos sp.2 Stirton 1960 bear
 Neoceti -
Neoceti indet.2 Fordyce and de Muizon 2001 whale