Mustang Creek, Tarrant Co. [Comanche Peak Limestone] (Cretaceous of the United States)

Where: Tarrant County, Texas (32.6° N, 97.5° W: paleocoordinates 30.2° N, 55.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Comanche Peak Limestone Formation (Fredericksburg Group), Early/Lower Albian (112.0 - 109.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Comanche Peak Limestone, which overlies the Walnut Clay and is overlain by the Edwards Fm of the Fredricksburg Gp. AGE: early Middle Albian; lower early Comanchean, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From unknown position in formation.

• bed-level stratigraphic resolution

Environment/lithology: lithified limestone

• ENVIRONMENT: Shallow carbonate marine setting.
• SPECIFIC LITHOLOGY: Not stated specifically, but presumably limestone. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression

Reposited in the USNM

Collection methods: surface (in situ),

• COLLECTOR: Not stated, but presumably the authors. REPOSITORY: USNM, Washington.

Primary reference: W. J. Kennedy, N. H. Landman, and W. A. Cobban. 1998. Engonoceratid ammonites from the Glen Rose Limestone, Walnut Clay, Goodland Limestone, and Comanche Peak Limestone (Albian) in Texas. American Museum Novitates 3221:1-40 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 82424: authorized by Austin Hendy, entered by Austin Hendy on 27.07.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to ammonoidea, although other faunal groups are known to co-occur (though not listed). NOMENCLATURE: Authoritative publication, with modern nomenclature and species-resolution identifications.
Show authors, comments, and common names
Cephalopoda
 Ammonitida - Engonoceratidae
Engonoceras hilli, Engonoceras stolleyi
Engonoceras hilli Böhm 1898 ammonite
Engonoceras stolleyi Böhm 1898 ammonite