Keyes Scrap Metal Yard (Byram Fm): Unit C, Bulk 6: Rupelian, Mississippi
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium spp.
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| Here Only Includes D. strenuum and D. mississippiensis | ||||||||||
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Gastropoda
- Heterostropha
- Architectonicidae
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Architectonica spp.
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3 individuals | |||||||||
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Gastropoda
- Heterostropha
- Ringiculidae
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Ringicula mississippiensis
Conrad 1848
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2 individuals | |||||||||
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Gastropoda
- Pseudomelaniidae
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Crassispira spp.
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1 individual | |||||||||
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Gastropoda
- Epitoniidae
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Pliciscala byramensis
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1 individual | |||||||||
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Scalina spp.
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1 individual | |||||||||
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Gastropoda
- Turritellidae
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Turritella caseyi
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1 individual | |||||||||
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Turritella planigyrata
Guppy 1867
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8 individuals | |||||||||
| recombined as Turritella (Broderiptella) planigyrata | ||||||||||
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Calyptraea spp.
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1 individual | |||||||||
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Gastropoda
- Ranellidae
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Sassia spp.
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5 individuals | |||||||||
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Gastropoda
- Xenophoridae
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Xenophora conica
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1 individual | |||||||||
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Xenophora humilis
(Conrad 1848)
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1 individual | |||||||||
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Gastropoda
- Neogastropoda
- Olividae
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Oliva spp.
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3 individuals | |||||||||
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Gastropoda
- Neogastropoda
- Nassariidae
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Tritiaria spp.
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5 individuals | |||||||||
| spelled with current rank as Nassarius (Tritiaria) | ||||||||||
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Gastropoda
- Neogastropoda
- Drilliidae
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Syntomodrillia tantula
Conrad 1843
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1 individual | |||||||||
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Gastropoda
- Neogastropoda
- Turridae
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Pleurofusia spp.
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1 individual | |||||||||
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Coronia tenella
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1 individual | |||||||||
| spelled with current rank as Gemmula (Coronia) | ||||||||||
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Gastropoda
- Neogastropoda
- Terebridae
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Terebra spp.
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2 individuals | |||||||||
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Gastropoda
- Neogastropoda
- Conidae
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Conus spp.
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1 individual | |||||||||
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Gastropoda
- Naticidae
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Naticidae indet.
Guilding 1834
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19 individuals | |||||||||
| Here Only Includes Natica spp. and Euspira spp. | ||||||||||
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Gastropoda
- Opisthobranchia
- Cylichnidae
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Cylichna nida
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4 individuals | |||||||||
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Bivalvia
- Nuculanida
- Yoldiidae
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Yoldia serica
(Conrad 1848)
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0.5 individuals | |||||||||
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Bivalvia
- Nuculida
- Nuculidae
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Nucula vicksburgensis
Conrad 1848
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2 individuals | |||||||||
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Bivalvia
- Ostreida
- Ostreidae
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Lopha vicksburgensis
(Conrad 1848)
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0.5 individuals | |||||||||
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Bivalvia
- Ostreida
- Pteriidae
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Pteria argentea
(Conrad 1848)
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1 individual | |||||||||
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Bivalvia
- Pectinida
- Pectinidae
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Pecten byramensis
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28.5 individuals | |||||||||
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Bivalvia
- Arcida
- Glycymerididae
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Glycymeris arctata
(Conrad 1848)
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1 individual | |||||||||
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Bivalvia
- Arcida
- Arcidae
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Barbatia mississippiensis
(Conrad 1848)
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0.5 individuals | |||||||||
| recombined as Barbatia (Cucullaearca) mississippiensis | ||||||||||
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Scapharca lesueuri
(Dall 1848)
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81 individuals | |||||||||
| recombined as Cunearca lesueuri | ||||||||||
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Bivalvia
- Lucinida
- Lucinidae
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Lucina varisculpta
Dockery 1982
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0.5 individuals | |||||||||
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Lucina posteocurta
Dockery 1982
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0.5 individuals | |||||||||
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Bivalvia
- Pholadida
- Corbulidae
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Corbula engonata
Conrad 1848
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3 individuals | |||||||||
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Corbula laqueata
Casey 1903
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182 individuals | |||||||||
| recombined as Varicorbula laqueata | ||||||||||
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Bivalvia
- Cardiida
- Veneridae
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Callista sobrina
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1.5 individuals | |||||||||
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Pitar imitabilis
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2 individuals | |||||||||
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Bivalvia
- Cardiida
- Cardiidae
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Nemocardium diversum
(Conrad 1848)
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4.5 individuals | |||||||||
| recombined as Nemocardium (Nemocardium) diversum | ||||||||||
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Bivalvia
- Cardiida
- Tellinidae
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Tellina vicksburgensis
Conrad 1848
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2.5 individuals | |||||||||
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Bivalvia
- Cardiida
- Semelidae
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Ervilia lamelloexteria
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1 individual | |||||||||
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Bivalvia
- Carditida
- Crassatellidae
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Crassinella variablis
Dockery 1982
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10.5 individuals | |||||||||
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Bivalvia
- Carditida
- Astartidae
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Astarte menthifontis
Dockery 1982
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10 individuals | |||||||||
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unclassified
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Bryozoa indet.
Ehrenberg 1831
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Actinopterygii
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Actinopterygii indet.
Cope 1887
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unclassified
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Foraminifera indet.
Eichwald 1830
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| 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 - 27.82000 m.y. ago |
Stratigraphy
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: | 66312 | ||
| Authorizer: | L. Ivany | Enterer: | C. Visaggi |
| Modifier: | U. Smith | Research group: | GCP,marine invertebrate |
| Created: | 2006-10-07 09:51:24 | Last modified: | 2010-10-14 06:12:01 |
| Access level: | database members | Released: | 2007-01-07 09:51:24 |
| 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] |