USGS Loc. D11707, Fence Lake [Rio Salado Tongue Tongue, Mancos Shale] (Cretaceous of the United States)

Where: Cibola County, New Mexico (34.8° N, 108.8° W: paleocoordinates 37.7° N, 75.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Rio Salado Tongue Member (Mancos Shale Formation), Early/Lower Turonian (93.5 - 89.3 Ma)

• STRATIGRAPHIC RELATIONS: From the Rio Salado Tongue of the Mancos Fm, which is overlain by the Atarque Sandstone. AGE: Early Turonian, on the basis of ammonoid. STRATIGRAPHIC POSITION: From near base of Rio Salado Tongue, in upper Mancos Shale.

• bed-level stratigraphic resolution

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

• ENVIRONMENT: Marine siliciclastic.
• SPECIFIC LITHOLOGY: Limestone concretions, elongated and usually closely spaced. LITHIFICATION: Lithified, on the basis of facies description.

Size class: macrofossils

Preservation: mold/impression, concretion

Collected by Cobban & Hook; reposited in the USNM

Collection methods: surface (in situ),

• COLLECTOR: W.A. Cobban and S.C. Hook, + others from the New Mexico Geological Survey. REPOSITORY: USNM.

Primary reference: W. A. Cobban and S. C. Hook. 1983. Mid-Cretaceous (Turonian) ammonite fauna from Fence Lake area of west-central New Mexico. New Mexico Bureau of Mines and Mineral Resources Memoir 41:1-50 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 87811: authorized by Austin Hendy, entered by Austin Hendy on 25.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for marine invertebrate groups. NOMENCLATURE: An authoritative publication, with modern nomenclature, and species-resolution identifications.
Show authors, comments, and common names
Bivalvia
 Cardiida - Arcticidae
Veniella mortoni
Veniella mortoni Meek 1876 clam