Where: Comal County, Texas (29.8° N, 98.3° W: paleocoordinates 31.8° N, 67.3° W)
• coordinate based on political unit
• local area-level geographic resolution
When: Austin Chalk Formation, Coniacian (89.8 - 86.3 Ma)
• STRATIGRAPHIC RELATIONS: From the Austin Chalk, for which lithostratigraphic relationships are not disucssed. AGE: Coniacian, on the basis of antiquated ammonite biostratigraphy. STRATIGRAPHIC POSITION: Checklist representative of entire formation.
• formation-level stratigraphic resolution
Environment/lithology: marine; lithified marl
Size class: macrofossils
Collection methods: surface (in situ),
• COLLECTORS: Unknown. REPOSITORY: USNM.
Primary reference: J. B. Reeside. 1932. The Upper Cretaceous ammonite genus Barroisiceras in the United States. United States Geological Survey Professional Paper 170(B):9-21 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 88535: authorized by Austin Hendy, entered by Austin Hendy on 14.04.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
"Barroisiceras (Texasia) dentatocarinatum" = Barroisiceras (Texanites) dentatocarinatum
"Barroisiceras (Texasia) dentatocarinatum" = Barroisiceras (Texanites) dentatocarinatum Roemer 1849 ammonite |