MGS #35b: Rupelian, Mississippi
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Neogastropoda
- Muricidae
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Pterynotus angelus
(Aldrich 1886)
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MacNeil and Dockery 1984 | |||||||||
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Murexiella vaughani n. sp.
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MacNeil and Dockery 1984 | |||||||||
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Siphonochelus curvirostratus
(Conrad 1848)
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MacNeil and Dockery 1984 | |||||||||
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Gastropoda
- Neogastropoda
- Mitridae
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Mitra conquista
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MacNeil and Dockery 1984 | |||||||||
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Gastropoda
- Neogastropoda
- Turridae
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Scobinella caelata
Conrad 1848
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MacNeil and Dockery 1984 | |||||||||
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Gastropoda
- Neogastropoda
- Clavatulidae
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Turricula longiforma
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MacNeil and Dockery 1984 | |||||||||
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Gastropoda
- Ranellidae
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Sassia conradiana
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MacNeil and Dockery 1984 | |||||||||
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Bivalvia
- Carditida
- Astartidae
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Astarte triangulata
Meyer 1886
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A category | |||||||||
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Bivalvia
- Cardiida
- Veneridae
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Chione (Lirophora) victoria
Dall 1982
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R category | |||||||||
| recombined as Lirophora (Lirophora) victoria | ||||||||||
| Chione (Lirophora) victoria | ||||||||||
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Bivalvia
- Arcida
- Arcidae
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Scapharca invidiosa
(Casey 1903)
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R category | |||||||||
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Bivalvia
- Pectinida
- Dimyidae
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Dimya rufaripa
Vokes 1979
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A category | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Mississippi | County: | Wayne |
| Coordinates: | 31.7° North, 88.7° West (view map) | ||||
| Paleocoordinates: | 31.9° North, 82.2° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Rupelian | 10 m.y. bin: | Cenozoic 4 |
| *Period: | Middle Tertiary | *Epoch: | Early/Lower Oligocene |
| *International age/stage: | Early/Lower Rupelian - Rupelian | *Local age/stage: | Vicksburg - Vicksburg |
| Key time interval: | Rupelian | ||
| Age range of interval: | 33.90000 - 27.82000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Red Bluff | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: The basal member of the VicksburGroup, the Red Bluff formation occurs just above the Yazoo Clay. | |||||
Lithology and environment
| Primary lithology: | gray unlithified silty claystone | ||
| Secondary lithology: | siltstone | ||
| Includes fossils? | Y | ||
| Includes fossils? | Y | ||
| Lithology description: fossiliferous, dark gray, silty clay with zones of iron concretions in the lower part. also common, sandy lenses. | |||
| Environment: | prodelta | Tectonic setting: | passive margin |
Taphonomy
| Modes of preservation: | body,original aragonite,original calcite |
| Size of fossils: | mesofossils |
Collection methods and comments
| Collection excludes: | all microfossils,some macrofossils |
| Collection methods: | bulk,mechanical,field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: bivalves only | |
| Taxonomic list comments:bivalves only**abundances are given as counts ONLY for those species with fewer than 100 specimens - for 100 or more, he just gives "A" for "abundant". In the case where a collection includes an "A", we enter abundance classes for species instead of counts as follows: Fewer than 10 specimens = R (rare)10 to 99 specimens = C (common)Greater than 99 specimens(Dockery's "A") = A (abundant)In this reference, "specimens" equals "valves" | |
Metadata
| Database number: | 7113 | ||
| Authorizer: | L. Ivany | Enterer: | E. Kowalski |
| Modifier: | J. Sessa | Research group: | GCP,marine invertebrate |
| Created: | 2000-04-26 09:36:28 | Last modified: | 2010-08-06 11:11:34 |
| Access level: | the public | Released: | 2000-04-26 09:36:28 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 323. | D. T. Dockery. 1982. Lower Oligocene Bivalvia of the Vicksburg Group in Mississippi. Mississippi Department of Natural Resources Bureau of Geology 123:1-261 [L. Ivany/S. DeLong/M. Uhen] |
Secondary references:
| 447 | F. S. MacNeil and D. T. Dockery. 1984. Lower Oligocene Gastropoda, Scaphopoda, and Cephalopoda of the Vicksburg Group in Mississippi. Mississippi Department of Natural Resources, Bureau of Geology Bulletin 124:1-415 [L. Ivany/E. Kowalski/P. Wagner] |