Where: Chihuahua, Mexico (27.2° N, 100.6° W: paleocoordinates 25.6° N, 59.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Clansayes Formation, Early/Lower Albian (112.0 - 109.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Clansayes horizon (or correlative of), for which lithostratigraphic relationships are not discused. AGE: Albian; on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From unknown position in unit.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, red, yellow limestone

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 and O.A. Cavins. 1927. The Cretaceous and Tertiary of southern Texas and northern Mexico. University of Texas Bulletin 2748:1-142 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 88250: authorized by Austin Hendy, entered by Austin Hendy on 04.04.2009

Creative Commons license: CC BY (attribution)