Black Bluff [Porters Clay] - Nautiloidea: Danian - Selandian, Alabama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Nautilida - Hercoglossidae
Cimomia haltomi (Aldrich 1931)
see common names

Geography
Country:United States State/province:Alabama County:Sumter
Coordinates: 32.4° North, 88.0° West (view map)
Paleocoordinates:35.5° North, 68.4° West
Basis of coordinate:based on nearby landmark
Geographic resolution:hand sample
Time
Period: Paleogene Epoch: Paleocene
Stage: Danian - Selandian 10 m.y. bin: Cenozoic 1
Key time interval: Danian - Selandian
Age range of interval: 66 - 59.2 m.y. ago
Stratigraphy
Geological group:Midway Formation:Porters Creek
Stratigraphic resolution:bed
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Porters [Creek] Clay Fm (=Sucarnochee Clay) of the Midway Group. AGE: Early Paleocene. STRATIGRAPHIC POSITION: From unknown position in Porters Clay Fm.
Lithology and environment
Primary lithology: poorly lithified claystone
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Unknown, but presumably claystone. LITHIFICATION: Poorly lithified based on figured specimen.
Environment:coastal indet.
Geology comments: ENVIRONMENT: Not stated, but probably siliciclastic shallow shelf setting.
Taphonomy
Modes of preservation:mold/impression
Size of fossils:macrofossils
Preservation of anatomical detail:medium
Fragmentation:occasional
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:surface (in situ),field collection,survey of museum collection
Collection size:4 specimens
Reason for describing collection:taxonomic analysis
Collection method comments: COLLECTOR: Unknown. REPOSITORY: State University of Iowa and Alabama Museum of Natural History.
Taxonomic list comments:COVERAGE: Limited to Nautiloidea described in primary publication. NOMENCLATURE: Authoritative publication with modern nomenclature and species-resolution identifications.
Metadata
Database number:80975
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:U. Smith Research group:marine invertebrate
Subset of collection #:35081
Created:2008-05-24 16:30:35 Last modified:2013-11-25 13:37:23
Access level:the public Released:2008-05-24 16:30:35
Creative Commons license:CC BY
Reference information

Primary reference:

27243. A. K. Miller and M. L. Thompson. 1933. The nautiloid cephalopods of the Midway Group. Journal of Paleontology 7(3):298-324 [A. Hendy/A. Hendy/A. Hendy]

Secondary references:

27587 A. K. Miller. 1947. Tertiary nautiloids of the Americas. Geological Society of America Memoir 23:1-234 [A. Hendy/A. Hendy]