CIT 1057, Aliso Creek (Cretaceous of the United States)

Where: Orange County, California (33.7° N, 117.6° W: paleocoordinates 39.4° N, 87.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Holz Shale Member (Ladd Formation), Early/Lower Campanian (83.5 - 70.6 Ma)

• Late early Campanian, upper part of Holz Shale

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified shale

• Shale beds overlying conglomerate lens

Size class: macrofossils

Collected by W.P. Popenoe in 1934; 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 185172: authorized by Matthew Clapham, entered by Matthew Clapham on 14.04.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Stromboidea - Aporrhaidae
Anchura phaba Elder and Saul 1996 snail