MGS #40: Rupelian, Mississippi
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Epitoniidae
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Confusiscala durhami n. sp.
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MacNeil and Dockery 1984 | |||||||||
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Gastropoda
- Neogastropoda
- Fasciolariidae
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Latirus aldrichi n. sp.
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MacNeil and Dockery 1984 | |||||||||
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Gastropoda
- Neogastropoda
- Buccinidae
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Metula fastidiosa
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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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Mitra (Fusimitra) conquisita
Conrad 1848
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Dockery 1980 | |||||||||
| recombined as Fusimitra conquisita | ||||||||||
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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
- Neogastropoda
- Turridae
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Scobinella pluriplicata
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MacNeil and Dockery 1984 | |||||||||
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Pleurofusia clarkeana
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MacNeil and Dockery 1984 | |||||||||
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Gastropoda
- Neogastropoda
- Costellariidae
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Orthosurcula longiforma
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Dockery 1980 | |||||||||
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Vexillum lintoidea
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MacNeil and Dockery 1984 | |||||||||
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Gastropoda
- Neogastropoda
- Volutidae
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Lyria nestor
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MacNeil and Dockery 1984 | |||||||||
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Caricella reticulata
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MacNeil and Dockery 1984 | |||||||||
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Caricella (Atraktus) reticulata
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Dockery 1980 | |||||||||
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Gastropoda
- Neogastropoda
- Muricidae
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? Urosalpinx aspinosus
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MacNeil and Dockery 1984 | |||||||||
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Gastropoda
- Eocypraeidae
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Sulcocypraea healeyi
(Aldrich 1923)
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MacNeil and Dockery 1984 | |||||||||
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Gastropoda
- Cassidae
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Mambrinia brevidentata
|
MacNeil and Dockery 1984 | |||||||||
| synonym of Galeodea | ||||||||||
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Sconsia prelintea n. sp.
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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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Gastropoda
- Ficidae
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Ficus mississippiensis
Conrad 1848
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MacNeil and Dockery 1984 | |||||||||
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Bivalvia
- Nuculanida
- Yoldiidae
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Yoldia clydoniona n. sp.
Dockery 1982
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37 individuals | |||||||||
| C category | ||||||||||
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Bivalvia
- Nuculida
- Nuculidae
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Nucula vicksburgensis
Conrad 1848
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1 individual | |||||||||
| R category | ||||||||||
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Brevinucula pseudopunctata
Dockery 1982
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30 individuals | |||||||||
| C category | ||||||||||
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Bivalvia
- Mytilida
- Mytilidae
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Septifer probolus n. sp.
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7 individuals | |||||||||
| R category [entered as Septifer probulus] | ||||||||||
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Bivalvia
- Pectinida
- Dimyidae
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Dimya rufaripa
Vokes 1979
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A category | |||||||||
| 100+ valves collected | ||||||||||
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Bivalvia
- Pectinida
- Spondylidae
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Spondylus dumosus
(Morton 1834)
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10 individuals | |||||||||
| C category | ||||||||||
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Bivalvia
- Pectinida
- Pectinidae
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Pecten perplanus
Morton 1833
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9 individuals | |||||||||
| recombined as Pecten (Pecten) perplanus | ||||||||||
| R category | ||||||||||
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Eburneopecten subminutus
(Aldrich 1903)
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73 individuals | |||||||||
| recombined as Eburneopecten (Eburneopecten) subminutus | ||||||||||
| C category | ||||||||||
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Bivalvia
- Pectinida
- Plicatulidae
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Plicatula variplicata n. sp.
Dockery 1982
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1 individual | |||||||||
| R category | ||||||||||
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Bivalvia
- Ostreida
- Ostreidae
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Lopha vicksburgensis
(Conrad 1848)
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46 individuals | |||||||||
| C category | ||||||||||
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Bivalvia
- Arcida
- Arcidae
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Barbatia paradiagona n. sp.
Dockery 1982
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5 individuals | |||||||||
| R category | ||||||||||
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Scapharca invidiosa
(Casey 1903)
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A category | |||||||||
| 100+ valves collected | ||||||||||
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Bivalvia
- Arcida
- Glycymerididae
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Glycymeris intercostata
(Gabb 1860)
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14 individuals | |||||||||
| C category | ||||||||||
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Bivalvia
- Cardiida
- Cardiidae
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Agnocardia glebosum
(Conrad 1848)
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2 individuals | |||||||||
| R category | ||||||||||
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Nemocardium eocenense
(Meyer 1887)
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12 individuals | |||||||||
| C category | ||||||||||
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Bivalvia
- Cardiida
- Semelidae
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Abra pectorosa
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3 individuals | |||||||||
| R category | ||||||||||
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Bivalvia
- Cardiida
- Chamidae
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Chama mississippiensis
Conrad 1848
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59 individuals | |||||||||
| recombined as Chama (Psilopus) mississippiensis | ||||||||||
| C category | ||||||||||
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Bivalvia
- Cardiida
- Veneridae
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Pitar aldrichi n. sp.
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1 individual | |||||||||
| R category | ||||||||||
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Bivalvia
- Pholadida
- Corbulidae
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Corbula rufaripa n. sp.
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A category | |||||||||
| 100+ valves collected | ||||||||||
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Corbula engonata
Conrad 1848
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24 individuals | |||||||||
| C category | ||||||||||
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Bivalvia
- Poromyida
- Verticordiidae
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Verticordia dalliana
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4 individuals | |||||||||
| R category | ||||||||||
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Haliris quadrangularis
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7 individuals | |||||||||
| R category | ||||||||||
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Bivalvia
- Lucinida
- Lucinidae
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Myrtea scopularis
(Casey 1903)
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41 individuals | |||||||||
| C category | ||||||||||
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Bivalvia
- Carditida
- Carditidae
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Venericardia carsonensis
Dall 1903
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8 individuals | |||||||||
| recombined as Venericardia (Rotundicardia) carsonensis | ||||||||||
| R category | ||||||||||
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Bivalvia
- Carditida
- Astartidae
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Astarte triangulata
Meyer 1886
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A category | |||||||||
| 100+ valves collected | ||||||||||
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Anthozoa
- Scleractinia
- Dendrophylliidae
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Balanophyllia (Balanophyllia) elongata
Vaughan 1900
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Dockery 1980 | |||||||||
| 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: | Early/Lower Tertiary | *Epoch: | Early/Lower Oligocene |
| *International age/stage: | Early/Lower Rupelian - Early/Lower Rupelian | ||
| 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 Red Bluff Formation as exposed is Clarke and Wayne counties, Mississippi, consists of fossiliferous, dark clay,silty clay,with zones of ironstone concretions in the lower part. These sediments disconformably overlie the blue-gray, blocky, marine clay of the Shubuta Clay Member of the Yazoo Formation and were deposited during in shallow marine shelf, prodelta, and marginal delta bay enviroments. Along the Chickasawhay River in Wayne County, the lower portion of the Red Bluff Formation is very fossiliferous. Well-preserved fossils in this basal zone occur in abundance in narrow, glauconitic, sand lenses within the clay. Irregular ironstone concretions occur along fosiliferous zones in the lower Red Bluff Formation and show up on electric logs as one or two "kicks" on the resistivity curve at the base of the formation. | |||||
Lithology and environment
| Primary lithology: | gray poorly lithified silty,sandy siltstone | ||
| Secondary lithology: | ironstone | ||
| Includes fossils? | Y | ||
| Includes fossils? | Y | ||
| Environment: | offshore | 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,difficult macrofossils |
| Collection methods: | bulk,mechanical,field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: bivalves only | |
| Taxonomic list comments:Taxonomic list is recorded in catagories due to the fact that the author of this collection recorded all abundances of a species more than 100 as an "A",all other species with lesser numbers were documented as that number. This list has been catigorized as 1-9 valves found is an "R" as in rare, 10-99 valves found "C" common, and 100+ valves found is "A" for abundant, like the author had it.
Categories are listed in the comments field, absolute abundances are given in the abundance field. Since taxa with greater than 99 specimens were not counted with absolute abundances, these were reported with category "A" for abundant. | |
Metadata
| Database number: | 5787 | ||
| Authorizer: | L. Ivany, J. Sessa | Enterer: | S. DeLong, L. Eccles |
| Modifier: | L. Eccles | Research group: | GCP,marine invertebrate |
| Created: | 1999-12-02 11:58:20 | Last modified: | 2010-12-21 14:44:47 |
| Access level: | the public | Released: | 1999-12-02 11:58:20 |
| 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:
| 11842 | D. T. Dockery. 1980. Invertebrate Macropaleontolgy of the Clarke County Mississippi Area. Bulletin - Mississippi Geological, Economic and Topographic Survey 122 [M. Kosnik/M. Kosnik/L. Eccles] | |
| 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] |