Sohl and Koch OFR # 68: Late/Upper Maastrichtian, Mississippi

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Vertebrata indet. Lamarck 1801
Shark parts
Gastropoda - Naticidae
Gyrodes abyssinus
1 specimen
Gyrodes abyssinus (Morton)
Gyrodes petrosus
1 specimen
Gyrodes petrosus (Morton)
Gastropoda - Aporrhaidae
Anchura sp. Conrad 1860
1 specimen
Anchura sp.
Bivalvia - Pectinida - Pectinidae
Pecten sp. Müller 1776
4 specimens
Pecten sp.
Bivalvia - Ostreida - Gryphaeidae
Exogyra costata (Say 1820)
3 specimens
original and current combination Exogyra (Exogyra) costata
Exogyra costata Say
Gryphaeostrea vomer (Morton 1828)
3 specimens
Gryphaeostrea vomer Morton
Bivalvia - Arcida - Arcidae
Arca sp. Linnaeus 1758
2 specimens
Arca sp.
Demospongiae - Clavulina - Clionaidae
Cliona sp.
Clione sp.
see common names

Geography
Country:United States State/province:Mississippi County:Chickasaw
Coordinates: 33.9° North, 89.0° West (view map)
Paleocoordinates:37.5° North, 66.5° West
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
*Period:Late/Upper Cretaceous *Epoch:Late/Upper Senonian
*International age/stage:Middle - Late/Upper Maastrichtian
Key time interval:Late/Upper Maastrichtian Ammonoid zone: Discoscaphites conradi
Age range of interval:72.10000 - 66.00000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Prairie Bluff Member:lower
Stratigraphic resolution:member
Stratigraphy comments: Haustator bilira assemblage zone
Lithology and environment
Primary lithology:gray lithified sandy,calcareous lime mudstone
Environment:marine indet. Tectonic setting:passive margin
Taphonomy
Modes of preservation:body,original calcite
Size of fossils:mesofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:paleoecologic analysis
Museum repositories:USGS
Collection method comments: Stephenson collection
Metadata
Also known as:E Houston; USGS # 6473
Database number:4144
Authorizer:M. Kosnik Enterer:M. Kosnik
Modifier:J. Sessa Research group:GCP,marine invertebrate
Created:1999-08-14 13:00:00 Last modified:2010-07-26 16:06:33
Access level:the public Released:1999-08-14 13:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

283. N. F. Sohl and C. F. Koch. 1983. Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain. USGS Open File Report 83-451:1-239 [M. Kosnik/M. Kosnik/M. Uhen]

Secondary references:

29915 J. A. Sessa, T. J. Bralower, M. E. Patzkowsky, J. C. Handley, and L. C. Ivany. 2012. Environmental and biological controls on the diversity and ecology of Late Cretaceous through early Paleogene marine ecosystems in the US Gulf Coastal Plain. Paleobiology 38(2):218-239 [M. Patzkowsky/J. Sessa/J. Sessa]