ammonites
Encantada Valley [Del Rio Fm] (Cretaceous of Mexico)

Where: Coahuila de Zaragoza, Mexico (28.3° N, 102.5° W: paleocoordinates 28.1° N, 68.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Del Rio Formation, Early/Lower Cenomanian (99.6 - 93.5 Ma)

• STRATIGRAPHIC RELATIONS: From the Del Rio Fm, which overlies the Georgetown Beds (Cenomanian) and is overlain by the Buda Fm. AGE: Early Cenomanian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within formation.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

• ENVIRONMENT: Not discussed in text.
• SPECIFIC LITHOLOGY: Not stated in text. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Collected by Baker

• COLLECTOR: C. L. Baker. REPOSITORY: UT and WSA.

Primary reference: K. Young. 1979. Lower Cenomanian and Late Albian (Cretaceous) ammonites, especially Lyelliceridae, or Texas and Mexico. Texas Memorial Museum Bulletin 26:1-99 [A. Hendy/A. Hendy] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88766: authorized by Austin Hendy, entered by Austin Hendy on 19.04.2009

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