Where: Sonora, Mexico (29.0° N, 110.8° W: paleocoordinates 0.8° N, 46.8° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Vereian to Vereian (314.8 - 311.4 Ma)

• local stage: Atokan

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lime mudstone and chert

Size class: microfossils

Primary reference: J. H. Stewart, R. Amaya-Martínez, R. G. Stamm, B. R. Wardlaw, G. D. Stanley, Jr. and C. H. Stevens. 1997. Stratigraphy and regional significance of Mississippian to Jurassic rocks in Sierra Santa Teresa, Sonora, Mexico. Revista Mexicana de Ciencias Geológicas 14(2):115-135 [M. Aberhan/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 39190: authorized by Martin Aberhan, entered by Sabine Nürnberg on 23.05.2004

Creative Commons license: CC BY (attribution)