Where: Sonora, Mexico (30.7° N, 112.6° W: paleocoordinates 19.2° N, 54.8° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Antimonio Formation, Sinemurian to Sinemurian (199.3 - 182.7 Ma)

• Sinemurian-Pliensbachian?

• member-level stratigraphic resolution

Environment/lithology: marine

Size class: macrofossils

Preservation: mold/impression

Primary reference: S. E. Damborenea and C. M. González-León. 1997. Late Triassic and Early Jurassic bivalves from Sonora, Mexico. Revista Mexicana de Ciencias Geológicas 14(2):178-201 [M. Aberhan/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 39208: authorized by Martin Aberhan, entered by Sabine Nürnberg on 23.05.2004

Creative Commons license: CC BY (attribution)