ammonites
A-3280 Elwha River (Eocene of the United States)

Where: Clallam County, Washington (48.1° N, 123.6° W: paleocoordinates 49.7° N, 108.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Crescent Formation, Middle Eocene (48.6 - 37.2 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified limestone

• calcareous concretion in black shales

Size class: macrofossils

Primary reference: J. W. Durham. 1942. Eocene and Oligocene coral faunas of Washington. Journal of Paleontology 16(1):84-104 [W. Kiessling/U. Merkel] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 91603: authorized by Wolfgang Kiessling, entered by Uta Merkel on 06.10.2009