Where: Nuevo Leon, Mexico (27.6° N, 100.0° W: paleocoordinates 33.6° N, 79.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Escondido Formation, Early/Lower Maastrichtian (70.6 - 65.5 Ma)

• STRATIGRAPHIC RELATIONS: From the Escondido beds, for which lithostratigraphic relationships are not discused. AGE: Early Maastrichtian; on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within formation.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone and lithified, sandy shale

Size class: macrofossils

Preservation: mold/impression

Collected by Bose; reposited in the UCMP

Collection methods: surface (in situ),

• COLLECTOR: Not stated, but presumably E. Böse. REPOSITORY: University of California, Berkeley.

Primary reference: E. Böse. 1928. Cretaceous ammonites from Texas and northern Mexico. University of Texas Bulletin 2748(2 - 1927):143-357 [A. Hendy/A. Hendy/L. Bulot] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88244: authorized by Austin Hendy, entered by Austin Hendy on 04.04.2009

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