San Pedro Yucunama III (Cretaceous to of Mexico)

Where: Oaxaca, Mexico (17.6° N, 97.5° W: paleocoordinates 15.7° N, 58.0° W)

• coordinate estimated from map

When: Yucunama Formation, Aptian to Aptian (125.0 - 100.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; claystone and yellow marl

• ... abundante macrofauna
• Esta unidad está formada por margas, calizas margosas y lutitas pizarrosas de color crema que intemperizan en amarillo, de estratificación mediana o fina, con abundante macrofauna.

Size class: macrofossils

Collected by Ing. Jorge Gonzáles-Alvarado in 1969-1975

Primary reference: M. M. Reyeros de Castillo. 1983. Corales de algunas formaciones cretacicas del Estado de Oaxaca. Universidad Nacional Autonoma de Mexico, Instituto de Geologia, Paleontologia Mexicana (47)1-67 [W. Kiessling/A. Girndt]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 79446: authorized by Wolfgang Kiessling, entered by Antje Girndt on 10.03.2008, edited by Uta Merkel

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Anthozoa
 Scleractinia - Stylinidae
Heliocoenia variabilis
Heliocoenia variabilis Etallon 1859 stony coral