LGS 21: Thanetian, Louisiana

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Turritellidae
Turritella mortoni Conrad 1830
recombined as Kapalmerella mortoni
Turritella mortoni postmortoni
Gastropoda - Neogastropoda - Melongenidae
Levifusus identus
Gastropoda - Neogastropoda - Raphitomidae
Pleurotomella veatchi
Bivalvia - Arcida - Arcidae
Arca (Barbatia) cuculloides (Conrad 1833)
recombined as Barbatia (Cucullaearca) cuculloides
Arca (Barbatia) cuculloides ludoviciana
Bivalvia - Ostreida - Ostreidae
Ostrea thirsae (Gabb 1862)
recombined as Odontogryphaea thirsae
Bivalvia - Cardiida - Cardiidae
Cardium (Cerastoderma) tuomeyi (Aldrich 1886)
recombined as Acanthocardia (Schedocardia) tuomeyi
Cardium (Cerastoderma) tuomeyi var.
Bivalvia - Cardiida - Tellinidae
Tellina ? sp. Linnaeus 1758
Bivalvia - Carditida - Carditidae
Venericardia (Venericor) densata (Conrad 1845)
Venericardia (Venericor) densata pendletonensis
see common names

Geography
Country:United States State/province:Louisiana County:Natchitoches
Coordinates: 31.7° North, 93.4° West (view map)
Paleocoordinates:35.2° North, 76.3° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Paleocene
Stage:Thanetian 10 m.y. bin:Cenozoic 1
Key time interval:Thanetian
Age range of interval:59.20000 - 56.00000 m.y. ago
Stratigraphy
Geological group:Wilcox Formation:Marthaville
Stratigraphic resolution:formation
Lithology and environment
Primary lithology:concretionary,ferruginous,glauconitic unlithified calcareous siltstone
Lithology description: Fossils occur in glauconitic calcareous silty mass and in ferruginous concretions.
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:99725
Authorizer:J. Sessa Enterer:L. Eccles
Modifier:L. Eccles Research group:GCP,marine invertebrate
Created:2010-11-19 13:37:21 Last modified:2011-02-16 18:13:10
Access level:group members Released:2015-11-19 13:37:21
Creative Commons license:CC BY
Reference information

Primary reference:

35012. J. O. Barry and R. J. LeBlanc. 1942. Lower Eocene Faunal Units of Lousiana. Geological Bulletin of the state of Louisiana Dept. of Conservation (23)1-208 [J. Sessa/L. Eccles/L. Eccles]