Where: Clallam County, Washington (48.2° N, 124.1° W: paleocoordinates 48.0° N, 116.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Clallam Formation, Aquitanian (23.0 - 20.4 Ma)

• From three 1-m thick beds in an interval between 191 and 207 m above the base of the formation. The Clallam Formation is the type for the Pacific Northwest Pillarian molluscan stage and is considered early Miocene, likely Aquitanian (Addicott, 1976a). In addition, benthic foraminifera of the Californian Saucesian stage (early Miocene, Aquitanian) are present in the Clallam Formation (Addicott, 1976b). Magnetostratigraphic studies place the Clallam Formation as latest Oligocene/earliest Miocene (Prothero et al., 2001).

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified sandstone

Size class: macrofossils

Preservation: mold/impression

Reposited in the USGS

Collection methods: quarrying,

Primary reference: W.O. Addicott. 1976. Molluscan paleontology of the lower Miocene Clallam Formation, northwestern Washington. United States Geological Survey Professional Paper 976:1-44 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 37560: authorized by Austin Hendy, entered by Austin Hendy on 16.03.2004

Creative Commons license: CC BY (attribution)