Where: Colusa County, California (39.0° N, 122.2° W: paleocoordinates 43.2° N, 86.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Forbes Formation (Asuncion Group), Coniacian (89.8 - 86.3 Ma)

• Forbes Shale consists of clay shale and silty or sandy shale, with a thickness of 1300 ft or more. Collection appears to be a little older than the "Salt Creek, Yolo" collection.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified shale

Size class: macrofossils

Collection methods: quarrying,

• Collected by Dobbins and Anderson; identified by Anderson.

Primary reference: F. M. Anderson. 1958. Upper Cretaceous of the Pacific Coast. Geological Society of America Memoir 71:1-378 [A. Miller/A. Hendy/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 44235: authorized by Austin Hendy, entered by Austin Hendy on 06.09.2004, edited by Matthew Clapham and Jonathan Marcot

Creative Commons license: CC BY (attribution)