Where: Tehama County, California (40.1° N, 121.8° W: paleocoordinates 47.4° N, 90.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Tenmile Member (Chico Formation), Early/Lower Campanian (83.5 - 70.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collected by J. Russell in 1985; reposited in the LACM

Primary reference: W. P. Elder and L. R. Saul. 1996. Taxonomy and biostratigraphy of Coniacian through Maastrichtian Anchura (Gastropoda; Aporrhaiidae) of the North American Pacific slope. Journal of Paleontology 70(3):381-399 [M. Patzkowsky/K. Layou/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 3891: authorized by Mark Patzkowsky, entered by Karen Layou on 11.08.1999

Creative Commons license: CC BY (attribution)