Where: San Luis Potosí , Mexico (23.6° N, 100.9° W: paleocoordinates 18.7° N, 51.6° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: El Pastor Member (La Caja Formation), Early/Lower Kimmeridgian (155.7 - 150.8 Ma)
Environment/lithology: lithified marl and silty claystone
Size class: macrofossils
Preservation: cast, mold/impression
Collection methods: quarrying,
Primary reference: F. Olóriz, A. B. Villaseñor, C. Gonzalez-Arreola and G. E. G. Westermann. 1999. Ammonite Biostratigraphy and Correlations in the Upper Jurassic-Lowermost Cretaceous La Caja Formation of North-Central Mexico (Sierra de Catorce, San Luis de Potosí). In F. Olóriz, F. J. Rodríguez-Tovar (eds.), Advancing Research on Living and Fossil Cephalopods 550 [A. Rojas/A. Rojas]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 192459: authorized by Alexis Rojas, entered by Alexis Rojas on 09.04.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Orthosphinctes ? sp. Schindewolf 1925 ammonite | |
Crussoliceras sp. Enay 1959 ammonite | |
Physodoceras sp. Hyatt 1900 ammonite
Orthaspidoceras sp. ammonite |