Loc. 1B - JS-92-5/ JS-92-5A, Sierra Santa Teresa, section 7 (Triassic of Mexico)

Where: Sonora, Mexico (29.0° N, 110.7° W: paleocoordinates 9.7° N, 53.4° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Norian (228.0 - 208.5 Ma)

• Subunit 5 of Upper Triassic and Lower Jurassic unit, belongs either to the Barranca Group or intermediate between the Barranca Group and Antimonio Formation

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lime mudstone and wackestone

Size class: macrofossils

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 39179: authorized by Martin Aberhan, entered by Sabine Nürnberg on 23.05.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia indet. Linnaeus 1758 clam
Gastropoda indet. Cuvier 1797 snail
 Ichthyosauria -
 Scleractinia - Astraeomorphidae
Astraeomorpha sonorensis Stanley 1994 stony coral
 Scleractinia - Reimaniphylliidae
Retiophyllia sp. Cuif 1966 stony coral
 Scleractinia - Actinastreidae
Chondrocoenia waltheri Frech 1890 stony coral
 Vaceletida - Verticillitidae
Cinnabaria expansa Seilacher 1962 demosponge
"Fania sp." = Fanthalamia Senowbari-Daryan and Engeser 1996 demosponge
Nevadathalamia cylindrica Seilacher 1962 demosponge