UCLA loc. 6534, Arroyo Santa Catarina (Cretaceous of Mexico)

Also known as LACMIP loc. 26534

Where: Baja California, Mexico (29.6° N, 115.2° W: paleocoordinates 34.9° N, 91.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified siltstone

• Buff silts below gritty sands with fossils

Size class: macrofossils

Preservation: mold/impression

Collected by L.R. Saul, R.L. Saul, W.P. Popenoe in 1968

• Repository: UCLA

Primary reference: W. P. Popenoe and L. R. Saul. 1987. Evolution and classification of the Late Cretaceous-Early Tertiary gastropod Perissitys. Contributions in Science 380:1-37 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 72061: authorized by Wolfgang Kiessling, entered by Uta Merkel on 24.05.2007, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Sorbeoconcha - Naticidae
Gyrodes (Hypterita) robsauli1 Popenoe et al. 1987 moon snail
 Neogastropoda - Perissityidae
Perissitys colocara Popenoe and Saul 1987 snail
 Neogastropoda - Tudiclidae
Rapopsis joseana2 Saul 1988 snail