USGS Loc. 21838, Tipton [Blue Hill Mbr, Carlile Shale] (Cretaceous of the United States)

Also known as Loc. 23

Where: Mitchell County, Kansas (39.3° N, 98.5° W: paleocoordinates 39.9° N, 63.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Prionocyclus hyatti ammonoid zone, Blue Hill Member (Carlile Shale Formation), Middle Turonian (93.5 - 89.3 Ma)

• STRATIGRAPHIC RELATIONS: From the Blue Hill Mbr of the Carlile Shale. AGE: Middle Turonian, on the basis of ammonoid biostratigraphy; Collignoniceras woollgari-Prionocyclus hyatti zone. STRATIGRAPHIC POSITION: From limestone concretion in the upper part of the Blue Hill Mbr.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary, calcareous shale

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

Size class: macrofossils

Preservation: concretion

Reposited in the USNM

Collection methods: surface (in situ),

• COLLECTOR: Not stated in text. REPOSITORY: USNM.

Primary reference: W. J. Kennedy, W. A. Cobban, and N. H. Landman. 2001. A revision of the Turonian members of the ammonite subfamily Collignoniceratinae from the United States Western Interior and Gulf Coast. Bulletin of the American Museum of Natural History 267:1-148 [A. Hendy/A. Hendy/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88418: authorized by Austin Hendy, entered by Austin Hendy on 11.04.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to Collignoniceratidae, and other groups added in secondary publications. NOMENCLATURE: Authoritative publication, with modern nomenclature and species-resolution identifications.
Cephalopoda
 Ammonitida - Collignoniceratidae
Collignoniceras woollgari Mantell 1822 ammonite
Prionocyclus hyatti Stanton 1894 ammonite