Where: Travis County, Texas (30.3° N, 97.8° W: paleocoordinates 28.4° N, 53.1° W)
• coordinate based on political unit
• local area-level geographic resolution
When: Cuchillo Formation (Trinity Group), Late/Upper Aptian (122.5 - 113.0 Ma)
• STRATIGRAPHIC RELATIONS: From the Cuchillo Fm of the Trinity Group, overlies the Yucca Fm, and is overlain by the Cox Fm. AGE: Late Aptian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: Checklist representative of entire formation.
• formation-level stratigraphic resolution
Environment/lithology: marine; lithified lithology not reported
Size class: macrofossils
Preservation: cast, mold/impression
Collection methods: surface (in situ),
• COLLECTORS: Authors of publication. REPOSITORY: Private amateur collections.
Primary reference: B. L. Emerson, J. H. Emerson, R. E. Akers and T. J. Akers. 1994. Texas Cretaceous ammonites and nautiloids. Texas Paleontology Series 5:1-439 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 84450: authorized by Austin Hendy, entered by Austin Hendy on 19.10.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Hypacanthoplites chihuahuaensis ammonite |