Keyes Scrap Metal Yard (Byram Fm): Unit E, Bulk 4: Rupelian, Mississippi

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Foraminifera indet. Eichwald 1830
Gastropoda - Neotaenioglossa - Calyptraeidae
Calyptraea spp.
3 individuals
Gastropoda - Turritellidae
Turritella caseyi
1 individual
Gastropoda - Neogastropoda - Olividae
Oliva spp.
3 individuals
Gastropoda - Neogastropoda - Nassariidae
Tritiaria spp.
19 individuals
spelled with current rank as Nassarius (Tritiaria)
Gastropoda - Neogastropoda - Conidae
Conus spp.
2 individuals
Gastropoda - Neogastropoda - Drilliidae
Syntomodrillia tantula Conrad 1843
2 individuals
Gastropoda - Neogastropoda - Terebridae
Terebra spp.
1 individual
Gastropoda - Neogastropoda - Turridae
Pleurofusia spp.
1 individual
Gastropoda - Neogastropoda - Costellariidae
Microsurcula intacta
1 individual
Gastropoda - Neogastropoda - Muricidae
Chicoreus spp.
4 individuals
Gastropoda - Neogastropoda - Cancellariidae
Agatrix mississippiensis
1 individual
Gastropoda - Naticidae
Naticidae indet. Guilding 1834
1 individual
Here Only Includes Natica spp. and Euspira spp.
Sinum beatricae
1 individual
Gastropoda - Vitrinellidae
Vitrinella laevis
1 individual
Gastropoda - Heterostropha - Ringiculidae
Ringicula mississippiensis Conrad 1848
3 individuals
Gastropoda - Heterostropha - Architectonicidae
Architectonica spp.
1 individual
Gastropoda - Opisthobranchia - Cylichnidae
Acteocina crassiplica
1 individual
A. crassiplica involuta
Bivalvia - Arcida - Arcidae
Scapharca lesueuri (Dall 1848)
256.5 individuals
recombined as Cunearca lesueuri
Bivalvia - Pectinida - Pectinidae
Pecten byramensis
7 individuals
Bivalvia - Lucinida - Lucinidae
Lucina posteocurta Dockery 1982
0.5 individuals
Bivalvia - Pholadida - Corbulidae
Corbula engonata Conrad 1848
1.5 individuals
Corbula laqueata Casey 1903
42 individuals
recombined as Varicorbula laqueata
Bivalvia - Cardiida - Veneridae
Callista sobrina
4 individuals
Pitar semipunctata
0.5 individuals
Bivalvia - Cardiida - Cardiidae
Nemocardium diversum (Conrad 1848)
0.5 individuals
recombined as Nemocardium (Nemocardium) diversum
Bivalvia - Cardiida - Tellinidae
Tellina vicksburgensis Conrad 1848
12 individuals
Bivalvia - Cardiida - Semelidae
Ervilia lamelloexteria
1 individual
Bivalvia - Carditida - Crassatellidae
Crassinella variablis Dockery 1982
1.5 individuals
Bivalvia - Nuculida - Nuculidae
Nucula vicksburgensis Conrad 1848
0.5 individuals
Bivalvia - Nuculanida - Nuculanidae
Nuculana akidota Dockery 1982
1.5 individuals
Bivalvia - Nuculanida - Yoldiidae
Yoldia serica (Conrad 1848)
1 individual
Scaphopoda - Dentaliida - Dentaliidae
Dentalium spp.
Here Only Includes D. strenuum and D. mississippiensis
unclassified
Bryozoa indet. Ehrenberg 1831
see common names

Geography
Country:United States State/province:Mississippi County:Warren
Coordinates: 32.4° North, 90.8° West (view map)
Paleocoordinates:32.8° North, 84.3° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Oligocene
Stage:Rupelian 10 m.y. bin:Cenozoic 4
Key time interval:Rupelian
Age range of interval:33.90000 - 28.10000 m.y. ago
Stratigraphy
Geological group:Vicksburg Formation:Byram
Stratigraphic resolution:bed
Stratigraphy comments: The Byram Formation is exposed nearly in its entirety at Keyes Scrap Metal Yard. Units recognized at this locality are classified as A through H going up section.
Lithology and environment
Primary lithology: unlithified silty,sandy "siliciclastic"
Environment:coastal indet. Tectonic setting:passive margin
Glacial or sequence phase:transgressive
Taphonomy
Modes of preservation:body,original aragonite,original calcite
Degree of concentration:concentrated
Size of fossils:macrofossils,mesofossils
Spatial orientation:random
Preservation of anatomical detail:good
Articulated whole bodies:some
Associated major elements:many
Size sorting:poor
Fragmentation:occasional
Feeding/predation traces:drill holes
Collection methods and comments
Collection methods:bulk,sieve,field collection
Minimum sieve size:2.000 Maximum sieve size:2.000
Reason for describing collection:paleoecologic analysis
Metadata
Database number:66320
Authorizer:L. Ivany Enterer:C. Visaggi
Modifier:U. Smith Research group:GCP,marine invertebrate
Created:2006-10-07 09:53:45 Last modified:2010-10-14 06:14:16
Access level:database members Released:2007-01-07 09:53:45
Creative Commons license:CC BY
Reference information

Primary reference:

18973. C. C. Visaggi. 2004. Testing for patterns of faunal persistence in the early Oligocene Byram Formation of Mississippi. Syracuse University [L. Ivany/C. Visaggi]