Where: King County, Washington (47.5° N, 121.9° W: paleocoordinates 48.4° N, 108.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: NP16-NP17 nannofossil zone, Cowlitz Formation, Bartonian (41.3 - 38.0 Ma)

• LITHOSTRATIGRAPHY: From the Cowlitz Formation, for which lithostratigraphic relationships are not discussed. AGE: Calcareous nannoplankton most precisely age this unit, placing the Cowlitz fauna in nannoplankton zones NP16 and NP17 (Martini, 1971) and upper CP14 (Oklada and Bukry, 1980), which correlates to the late middle Eocene (40-43 Ma) age (Berggren et al., 1992). Molluscan biostratigraphy suggests a "Tejon" stage age or "Cowlitz-Coaldeo" molluscan stage = Middle Eocene. Collection is assigned to the Bartonian=late Middle Eocene. STRATIGRAPHIC POSITION: From unknown position within formation.

• bed-level stratigraphic resolution

Environment/lithology: offshore; poorly lithified, bioturbated, glauconitic, argillaceous, carbonaceous siltstone

Size class: mesofossils

Reposited in the UMMP

Collection methods: surface (float), surface (in situ),

• COLLECTORS: Unknown. REPOSTORY: Museum of Paleontology, University of California (UCMP).

Primary reference: V. A. Zullo. 1966. A new species of Balanus (Cirripedia, Thoracica) from the Late Eocene Cowlitz Formation of southern Washington, U.S.A. Crustaceana 11(2):198-204 [A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 160104: authorized by Austin Hendy, entered by Austin Hendy on 14.08.2014, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)