ACh-4 Hatchetigbee: Ypresian, Alabama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Scleractinia - Dendrophylliidae
1 specimen
or (Eupsammia) elaborata
Scaphopoda - Dentaliida - Dentaliidae
Dentalium microstria Heilprin 1880
10 specimens
Gastropoda - Opisthobranchiata - Retusidae
1 specimen
Retusa (C.) sylvaerupis
Gastropoda - Heterostropha - Acteonidae
Tornatellaea bella Conrad 1860
1 specimen
Gastropoda - Turritellidae
15 specimens
Gastropoda - Neogastropoda - Volutidae
6 specimens
Gastropoda - Neogastropoda - Turridae
1 specimen
Gastropoda - Neogastropoda - Nassariidae
1 specimen
cf. Bullia altilis (Conrad 1832)
3 specimens
cf. Bullia altilis subglobosa
Gastropoda - Rostellariidae
4 specimens
Gastropoda - Naticidae
1 specimen
Bivalvia - Carditida - Carditidae
3 specimens
22 specimens
1 specimen
Bivalvia - Cardiida - Veneridae
4 specimens
4 specimens
Bivalvia - Cardiida - Tellinidae
1 specimen
Bivalvia - Pholadida - Corbulidae
Vokesula aldrichi (Meyer 1885)
2 specimens
Bivalvia - Pectinida - Pectinidae
Chlamys choctavensis (Aldrich 1895)
1 specimen
Bivalvia - Ostreida - Ostreidae
12 specimens
5 specimens
unclassified
1 specimen
Lyrodiscus smithvillensis "var."
Pisces
Vertebra
Chondrichthyes - Selachii
teeth
see common names

Geography
Country:United States State/province:Alabama County:Choctaw
Coordinates: 32.1° North, 88.2° West (view map)
Paleocoordinates:35.8° North, 64.6° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period: Paleogene Epoch: Eocene
Stage: Ypresian 10 m.y. bin: Cenozoic 2
Key time interval: Ypresian
Age range of interval: 56 - 47.8 m.y. ago
Stratigraphy
Geological group:Wilcox Formation:Hatchetigbee Bluff Member:Bashi
Stratigraphic resolution:group of beds
Stratigraphy comments: None.
Lithology and environment
Primary lithology:fine,glauconitic,gray unlithified calcareous sandstone
Lithology description: Sand, light-gray, fine-grained, very glauconitic, calcareous, fossiliferous; lower 1 foot is a shell bed.
Environment:shallow subtidal indet.
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:80766
Authorizer:A. Miller Enterer:J. Sessa
Modifier:J. Sessa Research group:GCP,marine invertebrate
Created:2008-05-06 18:46:03 Last modified:2025-02-22 15:12:02
Access level:the public Released:2008-05-06 18:46:03
Creative Commons license:CC0
Reference information

Primary reference:
124. L. D. Toulmin. 1977. Stratigraphic Distribution of Paleocene and Eocene Fossils in the Eastern Gulf Coast Region. Geological Survey of Alabama, Monograph 13(1):1-602 [M. Patzkowsky/K. Layou/P. Mannion]

Secondary references:

34008 L. C. Ivany, C. Pietsch, J. C. Handley, R. Lockwood, W. D. Allmon and J. A. Sessa. 2018. Little lasting impact of the Paleocene-Eocene Thermal Maximum on shallow marine mollusk faunas. Science Advances [J. Sessa/J. Sessa/J. Sessa]
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]