USGS M5906, Dip Creek (Cretaceous of the United States)

Where: San Luis Obispo County, California (35.7° N, 120.9° W: paleocoordinates 41.6° N, 97.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Asuncion Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collected by D.L. Durham, R.J. McLaughlin; O. Addicot, K. Masuda, D.L. Durham, T.W. Dibblee in 1969; 1970; reposited in the USNM

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 185190: authorized by Matthew Clapham, entered by Matthew Clapham on 15.04.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Stromboidea - Aporrhaidae
Anchura baptos n. sp. Elder and Saul 1996 snail