Bear Lake (Miocene of the United States)

Where: Aleutians East County, Alaska (56.0° N, 160.2° W: paleocoordinates 56.8° N, 158.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Bear lake Formation, Late/Upper Miocene (11.6 - 5.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified, shelly/skeletal, brown, gray, silty sandstone and shelly/skeletal conglomerate

• softer silty sandstone with harder, calcareous-cemented sandstone beds or lenses

Size class: macrofossils

Preservation: original phosphate

Collection methods: quarrying,

• Collections examined by F.S. MacNeil and D. Taylor (USGS), 1962. Collections are reposited at USGS Menlo Park, or presumably USNM (not reported)

Primary reference: L. L. Jacobs, A. R. Fiorillo, Y. Nishida and E. M. G. Fitzgerald. 2009. Mid-Cenozoic marine mammals from Alaska. Museum of Northern Arizona Bulletin 65:171-184 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 97626: authorized by Mark Uhen, entered by Mark Uhen on 16.08.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• No other fossils mentioned.
Chondrichthyes
 Lamniformes - Lamnidae
Isurus sp. Agassiz 1843 mako shark
Mammalia
 Perissodactyla -
Desmostylia indet. Reinhart 1953 desmostylian
unclassified
  -