Cañon de Panales [Clansayes horizon] (Cretaceous of Mexico)

Where: Tamaulipas, Mexico (24.2° N, 98.1° W: paleocoordinates 22.2° N, 58.1° 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

• SPECIFIC LITHOLOGY: Thin bedded, yellowish to reddish and gray colored limestone. LITHIFICATION: Lithified, on the basis of figured specimens.

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 88254: authorized by Austin Hendy, entered by Austin Hendy on 05.04.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Probably not exhaustive, but comprehensive for ammonoids. NOMENCLATURE: Authoritative publication with somewhat antiquated nomenclature, but with species-resolution identifications.
Cephalopoda
 Ammonitida - Desmoceratidae
 Ammonitida - Acanthohoplitidae
"Acanthoplites aff. crassicostatus" = Acanthohoplites
"Acanthoplites aff. crassicostatus" = Acanthohoplites ammonite
Bivalvia
 Myalinida - Inoceramidae
"Inoceramus cf. anglicus" = Gnesioceramus anglicus
"Inoceramus cf. anglicus" = Gnesioceramus anglicus Woods 1911 clam