GTw-1 Gosport (Eocene of the United States)

Where: Twiggs County, Georgia (32.7° N, 83.4° W: paleocoordinates 33.0° N, 74.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Gosport Sand Formation (Claiborne Group), Bartonian (41.3 - 38.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; unlithified, glauconitic, sandy sandstone

• The basal sand of the Gosport consists of poorly sorted grains of quartz and glauconite and abundant broken and worn shark teeth. Gosport fossils are abundant internal and external molds in friable quartz sand held together by white kaolin in No. 15 Mine.

Size class: mesofossils

Preservation: cast, mold/impression

Primary reference: L. D. Toulmin. 1977. Stratigraphic Distribution of Paleocene and Eocene Fossils in the Eastern Gulf Coast Region. Geological Survey of Alabama, Monograph 13(1):1-602 [M. Patzkowsky/K. Layou/P. Mannion]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 81264: authorized by Arnold Miller, entered by Jocelyn Sessa on 14.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Cerithioidea - Turritellidae
Turritella spp., Mesalia vetusta
Turritella spp. Lamarck 1799 turret shell
Mesalia vetusta Conrad 1833 turret shell
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium thalloides
Bivalvia
 Nuculanida - Nuculanidae
Nuculana sp.
Nuculana sp. Link 1807 pointed nut clam
 Nuculida - Nuculidae
"Nucula ovula" = Nucula (Nucula) ovula
"Nucula ovula" = Nucula (Nucula) ovula Lea 1833 nut clam
 Cardiida - Veneridae
? Pitar sp.
? Pitar sp. Römer 1857 venus clam
 Carditida - Astartidae
Lirodiscus tellinoides
Lirodiscus tellinoides Conrad 1833 clam
 Carditida - Crassatellidae
Crassatella sp.
Crassatella sp. Lamarck 1799 clam