Tumbez Formation (unspecified localities) (Miocene of Peru)

Where: Peru (3.7° S, 80.7° W: paleocoordinates 4.1° S, 79.0° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Tumbes Formation, Late/Upper Miocene (11.6 - 5.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; yellow, conglomeratic, calcareous sandstone and blue, carbonaceous shale

• coarse yellow sandstones and conglomerates often with interbedded shales, lignites and beds of volcanic ash

•upper zone consists of hard, limy sandstones, sandy marls and conglomerates

•second zone consists of hard, blue shales along with some sandstones and conglomerates

Size class: macrofossils

Primary reference: A. A. Olsson. 1932. Contributions to the Tertiary Paleontology of Northern Peru: Part 5, Miocene Mollusca. Bulletins of American Paleontology 19(68):1-272 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 66180: authorized by Linda Ivany, entered by Linda Ivany on 03.10.2006, edited by Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Sorbeoconcha - Bursidae
Crossata ventricosa
Crossata ventricosa Broderip 1833 frog shell