Also known as LACMIP loc. 25431

Where: Baja California, Mexico (31.5° N, 116.6° W: paleocoordinates 36.9° N, 93.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Rosario Formation, Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• Rosario Fm. Cretaceous, early Maastrichtian.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: mold/impression

Reposited in the LACM

Primary reference: L. R. Saul. 1988. Latest Cretaceous and Early Tertiary Tudiclidae and Melongenidae (Gastropoda) From the Pacific Slope of North-America. Journal of Paleontology 62(6):880-889 [J. Marcot/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 220452: authorized by Jonathan Marcot, entered by Jonathan Marcot on 01.06.2021

Creative Commons license: CC BY (attribution)