Where: Grant County, South Dakota (45.2° N, 96.8° W: paleocoordinates 44.8° N, 59.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Collignoniceras woollgari ammonoid zone, Carlile Shale Formation, Late/Upper Turonian (93.5 - 89.3 Ma)

• STRATIGRAPHIC RELATIONS: From an unnamed lithostratigraphic unit that overlies Precambrian granite; should be laterally correlative with the Carlisle Shale. AGE: Late Turonian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within formation. Yacubucci 2018 puts this in Carlile Shale.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, silty limestone

Size class: macrofossils

Preservation: mold/impression

Reposited in the USNM

Collection methods: surface (in situ),

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

Primary reference: W. A. Cobban. 1983. Molluscan fossil record from the northeastern part of the Upper Cretaceous seaway, Western Interior. United States Geological Survey Professional Paper 1253:1-25 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88005: authorized by Austin Hendy, entered by Austin Hendy on 30.03.2009, edited by Pete Wagner

Creative Commons license: CC BY (attribution)