Where: Coahuila de Zaragoza, Mexico (26.4° N, 103.3° W: paleocoordinates 25.3° N, 65.1° W)

• outcrop-level geographic resolution

When: Indidura Formation, Albian (112.0 - 99.6 Ma)

• STRATIGRAPHIC RELATIONS: From the Indidura Fm, which overlies the Aurora Limestone. AGE: Cenomanian, on the basis of biostratigraphic correlation to better dated Texan lithostratigraphic units, and ammonite biostratigraphy. STRATIGRAPHIC POSITION: From 100 ft higher in section than Loc. 61-98, at the highest expoure of the formation observed in the regional section.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

Preservation: mold/impression

Collected by Kellum in 1951; reposited in the UMMP

Collection methods: surface (float), surface (in situ),

• COLLECTOR: Kellum, 1951. REPOSITORY: UMMP.

Primary reference: L. B. Kellum and L. W. Mintz. 1962. Cenomanian ammonites from the Sierra de Tlahualilo, Coahuila, Mexico. Contributions from the Museum of Paleontology, University of Michigan 13(10):267-287 [A. Hendy/A. Hendy/J. Alroy] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88645: authorized by Austin Hendy, entered by Austin Hendy on 17.04.2009

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)