Where: San Juan County, Washington (48.8° N, 122.9° W: paleocoordinates 56.0° N, 88.8° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Metaplacenticeras pacificum ammonoid zone, Cedar District Formation (Nanaimo Group), Late/Upper Campanian (83.5 - 70.6 Ma)

• lower late Campanian; PJW: I at one time put this in a Rotalia cushmani zone, but I cannot rediscover why 6 years later! However, this should be in the Metaplacenticeras pacificum zone..

• formation-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Reposited in the GSC

Primary reference: L. T. Groves. 1990. New Species of Late Cretaceous Cypraeacea (Mollusca: Gastropoda) from California and Mississippi, and a Review of Cretaceous Cypraeaceans of North America. The Veliger 33(3):272-285 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 179073: authorized by Pete Wagner, entered by Pete Wagner on 27.05.2016

Creative Commons license: CC BY (attribution)