USGS 3381 - Blue Spring (Flint River Fm): Early/Lower Oligocene, Georgia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Cerithiidae
Cerithium cookei
Cerithium eutextile
Gastropoda - Turritellidae
Turritella tampae Heilprin 1887
Gastropoda - Cassidae
Cassis globosa
Gastropoda - Neogastropoda - Turbinellidae
Xancus wilsoni (Conrad 1848)
original and current combination Turbinella wilsoni
Gastropoda - Neogastropoda - Conidae
Conus sp. Linnaeus 1758
Gastropoda - Ampullinidae
Ampullina streptostoma
Bivalvia - Cardiida - Veneridae
Antigona aff. caesarina (Dall 1903)
recombined as Periglypta caesarina
Chione bainbridgensis Dall 1916
recombined as Chione (Chionopsis) bainbridgensis
Bivalvia - Cardiida - Cardiidae
Cardium eversum Conrad 1848
recombined as Trachycardium eversum
Bivalvia - Lucinida - Lucinidae
Phacoides (Miltha) hillsboroensis (Heilprin 1887)
original and current combination Miltha hillsboroensis
Bivalvia - Mytilida - Mytilidae
Lithophaga nuda Dall 1898
see common names

Geography
Country:United States State/province:Georgia County:Decatur
Coordinates: 30.9° North, 84.6° West (view map)
Paleocoordinates:31.0° North, 78.1° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Oligocene
Stage:Rupelian 10 m.y. bin:Cenozoic 4
Key time interval:Early/Lower Oligocene
Age range of interval:33.90000 - 27.82000 m.y. ago
Stratigraphy
Formation:Flint River
Local section:Blue Spring
Regional section:Flint RIver
Stratigraphic resolution:group of beds
Stratigraphy comments: From upper bed. Assigned to Lower Oligocene (Rupelian) by Scott et al. 2001 following mapping by Cooke (1945).
Lithology and environment
Primary lithology: lithified "limestone"
Includes fossils?Y
Lithology description: Limestone, also referred to as fossil coral reef.
Environment:shallow subtidal indet.
Geology comments: Shallow-water carbonate environment.
Taphonomy
Modes of preservation:cast,mold/impression,replaced with silica
Size of fossils:macrofossils
Preservation of anatomical detail:poor
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collection method comments: Collected by T.W. Vaughan (1900). Reposted in USNM collections.
Taxonomic list comments:Exhaustive for mollusca; from fairly poorly preserved assemblage; many identifications and types based on casts and molds.
Metadata
Also known as:Station 3381
Database number:60824
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2006-05-24 20:37:35 Last modified:2013-11-25 13:37:23
Access level:the public Released:2006-05-24 20:37:35
Creative Commons license:CC BY
Reference information

Primary reference:

17529. W. H. Dall. 1916. A contribution to the invertebrate fauna of the Oligocene beds of Flint, River. Proceedings of the United States National Museum 51(2162):487-524 [A. Miller/A. Hendy]