San Pedro Yucunama I (Cretaceous to of Mexico)

Where: Oaxaca, Mexico (17.6° N, 97.5° W: paleocoordinates 23.3° N, 75.4° W)

• coordinate estimated from map

When: Yucunama Formation, Campanian to Campanian (83.6 - 66.0 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 79439: 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 - Acroporidae
Diplocoenia sp.
Diplocoenia sp. Fromentel 1857 stony coral
subsp. madagascariensis
 Scleractinia - Haplaraeidae
Brachymeandra sp.
Brachymeandra sp. Alloiteau 1957 stony coral