USGS Loc. 13766, Bennett Mine [Colerain Fm] (Cretaceous of the United States)

Where: Itasca County, Minnesota (47.4° N, 93.1° W: paleocoordinates 44.3° N, 52.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Colerain Formation, Late/Upper Cenomanian (99.6 - 93.5 Ma)

• STRATIGRAPHIC RELATIONS: From the Colerain Fm, for which lithostratigraphic relations are unclear. AGE: Late Cenomanian, on the basis of inoceramid biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within formation.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, fine-grained, ferruginous, brown sandstone

• SPECIFIC LITHOLOGY: Dark brown, very fine grained ferrugiouns sandstone. LITHIFICATION: Lithified, on the basis of figured specimens.

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 88006: authorized by Austin Hendy, entered by Austin Hendy on 30.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to ammonoids or bivalves described in text. NOMENCLATURE: Authoritative publication, with modern nomenclature and species-resolution identifications.
Bivalvia
 Myalinida - Inoceramidae
Inoceramus mesabiensis Bergquist 1944 clam