Where: Mexico (23.7° N, 100.8° W: paleocoordinates 19.4° N, 52.4° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: El Verde Member (La Caja Formation), Late/Upper Tithonian (150.8 - 145.0 Ma)
• Talus from grey friable limestones and pinkish to yellowish marls of the El Verde Member.
• group of beds-level stratigraphic resolution
Environment/lithology: lithified limestone
Size class: macrofossils
Collection methods: surface (float)
• Repository: McMaster University
Primary reference: H. M. Verma and G. E. G. Westermann. 1973. The Tithonian (Jurassic) ammonite fauna of Sierra Catorce, San Luis Potosi, Mexico. Bulletins of American Paleontology 63(277):107-320 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 197748: authorized by Matthew Clapham, entered by Matthew Clapham on 24.11.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Kossmatia exceptionalis, Berriasella subprivasensis, Substeueroceras alticostatum, Substeueroceras storrsi
Kossmatia exceptionalis Aguilera 1895 ammonite Not in location description or table, but specimen listed in systematics
Berriasella subprivasensis Krantz 1928 ammonite Berriasella aff. zacetecana in location description, but subprivasensis in table and systematics
Substeueroceras storrsi Stanton 1895 ammonite | |
Durangites heilprini Aguilera 1895 ammonite
Durangites aff. heilprini Aguilera 1895 ammonite
Durangites vulgaris Burckhardt 1912 ammonite |