MGS #39: Rupelian, Mississippi

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Scleractinia - Dendrophylliidae
Dockery 1980
Gastropoda - Heterostropha - Acteonidae
Tornatellaea sp. Conrad 1860
MacNeil and Dockery 1984
Gastropoda - Heterostropha - Pyramidellidae
MacNeil and Dockery 1984
Gastropoda - Turritellidae
MacNeil and Dockery 1984
Gastropoda - Ranellidae
MacNeil and Dockery 1984
Gastropoda - Cassidae
MacNeil and Dockery 1984
Dockery 1980
Gastropoda - Neogastropoda - Costellariidae
MacNeil and Dockery 1984
MacNeil and Dockery 1984
Conomitra vicksburgensis laevigata
Dockery 1980
Gastropoda - Neogastropoda - Melongenidae
MacNeil and Dockery 1984
Gastropoda - Neogastropoda - Fasciolariidae
MacNeil and Dockery 1984
MacNeil and Dockery 1984
MacNeil and Dockery 1984
Gastropoda - Neogastropoda - Buccinidae
MacNeil and Dockery 1984
MacNeil and Dockery 1984
MacNeil and Dockery 1984
Gastropoda - Neogastropoda - Nassariidae
MacNeil and Dockery 1984
Gastropoda - Neogastropoda - Mitridae
MacNeil and Dockery 1984
Dockery 1980
Gastropoda - Neogastropoda - Clathurellidae
MacNeil and Dockery 1984
Gastropoda - Neogastropoda - Cochlespiridae
MacNeil and Dockery 1984
Cochlespira cookei rubracollis
Gastropoda - Neogastropoda - Borsoniidae
MacNeil and Dockery 1984
MacNeil and Dockery 1984
Bathytoma rhomboidea lyrata
Gastropoda - Neogastropoda - Turridae
MacNeil and Dockery 1984
Gemmula amica Casey 1903
MacNeil and Dockery 1984
Gastropoda - Neogastropoda - Clavatulidae
MacNeil and Dockery 1984
Gastropoda - Neogastropoda - Cancellariidae
MacNeil and Dockery 1984
Gastropoda - Neogastropoda - Volutidae
MacNeil and Dockery 1984
Dockery 1980
MacNeil and Dockery 1984
Dockery 1980
Gastropoda - Neogastropoda - Muricidae
MacNeil and Dockery 1984
Gastropoda - Ficidae
MacNeil and Dockery 1984
Gastropoda - Naticidae
MacNeil and Dockery 1984
Gastropoda - Opisthobranchiata - Limacinidae
Limacina sp. Bosc 1817
MacNeil and Dockery 1984
Scaphopoda - Dentaliida - Dentaliidae
MacNeil and Dockery 1984
MacNeil and Dockery 1984
Bivalvia - Nuculanida - Yoldiidae
7 individuals
R category
Bivalvia - Lucinida - Lucinidae
Myrtea scopularis (Casey 1903)
1 individual
R category
Bivalvia - Pholadida - Pholadidae
1 individual
R category
Bivalvia - Pholadida - Corbulidae
A category
99+ valves collected
1 individual
R category
Bivalvia - Cardiida - Cardiidae
13 category
C category
Agnocardia glebosum (Conrad 1848)
3 individuals
R category
Bivalvia - Cardiida - Semelidae
1 individual
R category
Bivalvia - Cardiida - Chamidae
1 individual
R category
Bivalvia - Cardiida - Veneridae
5 individuals
R category
4 individuals
R category
Bivalvia - Carditida - Carditidae
3 individuals
R category
Bivalvia - Carditida - Astartidae
33 category
C category
Bivalvia - Pectinida - Pectinidae
2 individuals
R category
Pecten perplanus Morton 1833
3 individuals
R category
Bivalvia - Pectinida - Spondylidae
Spondylus dumosus (Morton 1834)
4 individuals
R category
Dockery 1980
Bivalvia - Ostreida - Ostreidae
1 individual
R category
Ostrea paroxis Lesueur 1829
7 individuals
R category
Bivalvia - Arcida - Glycymerididae
3 individuals
R category
Bivalvia - Arcida - Arcidae
Scapharca invidiosa (Casey 1903)
3 individuals
R category
see common names

Geography
Country:United States State/province:Mississippi County:Wayne
Coordinates: 31.7° North, 88.7° West (view map)
Paleocoordinates:35.3° North, 75.6° West (Wright 2013)
Basis of coordinate:based on nearby landmark
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: 33.9 - 27.3 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Red Bluff
Stratigraphic resolution:formation
Stratigraphy comments: Red Bluff formation is exposed in Clark and Wayne counties, Mississippi. It consists of fossiliferous, dark grey, silty clay with zones of ironstone concentrations in lower part.These sediments conformably overlie the blue-grey, blocky, marine clay of the Shubuta Clay Member of the Yazoo Formation and were deposited in shallow marine shelf, prodelta, and marginal delta bay enviroments. Lower part of the Red Bluff Formation is the most fossiliferous. Otoliths are also abundant here.
Lithology and environment
Primary lithology:gray poorly lithified silty claystone
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:Because author denoted all species that he found more than 99 individuals as abundant or "A", I've used a similar system on the taxonomic list. 1- 9 individuals rare (R), 10 -99 (C) common, and 99+ (A) abundant like the author had before. 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:5779
Authorizer:L. Ivany, J. Sessa Enterer:S. DeLong, L. Eccles
Modifier:L. Eccles Research group:GCP,marine invertebrate
Created:1999-11-30 10:40:24 Last modified:2025-02-22 15:12:02
Access level:the public Released:1999-11-30 10:40:24
Creative Commons license:CC0
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]