Station 6. Biggs Farm, south bank Chesapeake and Delaware Canal (Cretaceous of the United States)

Where: New Castle County, Delaware (39.6° N, 75.6° W: paleocoordinates 40.1° N, 51.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Mount Laurel/Navesink Formation (Monmouth Group), Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; glauconitic, gray, green, red claystone

• Rust brown with green and red spots, medium, well sorted, subrounded, quartz sand; most grains stained with iron hydroxide; some glauconite; few black minerals; some brick red and gray clay balls. A highly fossiliferous zone is found at sea level.

Size classes: macrofossils, mesofossils

Collection methods: surface (float), mechanical,

Primary reference: L. T. Groves. 1990. New Species of Late Cretaceous Cypraeacea (Mollusca: Gastropoda) from California and Mississippi, and a Review of Cretaceous Cypraeaceans of North America. The Veliger 33(3):272-285 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 176022: authorized by Pete Wagner, entered by Pete Wagner on 22.01.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Sorbeoconcha - Cypraeidae
"Cypraea grooti n. sp." = Palaeocypraea grooti
"Cypraea grooti n. sp." = Palaeocypraea grooti Richards and Shapiro 1963 cowry