ACl-2 Hatchetigbee: Ypresian, Alabama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Heterostropha - Acteonidae
Tornatellaea bella Conrad 1860
1 specimen
Gastropoda - Naticidae
"Natica" sp. Scopoli 1777
2 specimens
Gastropoda - Neogastropoda - Fasciolariidae
? Clavilithes sp. Swainson 1840
1 specimen
"Clavilithes kennedyanus"
Gastropoda - Neogastropoda - Buccinidae
Laevibuccinum lineatum
14 specimens
Gastropoda - Neogastropoda - Melongenidae
Levifusus pagodiformis (Heilprin 1881)
1 specimen
Gastropoda - Neogastropoda - Cancellariidae
Bonellitia silvaerupis
5 specimens
Gastropoda - Neogastropoda - Turridae
cf. Eosurcula tuomeyi
1 specimen
Gastropoda - Neogastropoda - Volutidae
Athleta tuomeyi
2 specimens
Bivalvia - Nuculida - Nuculidae
Nucula sp. Lamarck 1799
3 specimens
Bivalvia - Cardiida - Veneridae
Pitar nuttalliopsis
2 specimens
Bivalvia - Pholadida - Corbulidae
Vokesula aldrichi (Meyer 1885)
5 specimens
Bivalvia - Carditida - Carditidae
Venericardia bashiplata Gardner and Bowles 1939
2 specimens
see common names

Geography
Country:United States State/province:Alabama County:Clarke
Coordinates: 31.9° North, 88.0° West (view map)
Paleocoordinates:34.0° North, 73.5° West
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:56.00000 - 47.80000 m.y. ago
Stratigraphy
Geological group:Wilcox Formation:Hatchetigbee Bluff Member:Bashi
Stratigraphic resolution:group of beds
Stratigraphy comments: Several fossiliferous beds were formerly exposed, but are now covered by backwater from Coffeeville Dam. Beds 2 and 4 of the section by Smith and Johnson, 1887, p.44 are the most fossiliferous.
Lithology and environment
Primary lithology:glauconitic,gray,green unlithified sandy,calcareous sandstone
Secondary lithology:micaceous,gray unlithified silty,carbonaceous claystone
Lithology description: Clay, greenish-gray, sandy, glauconitic, calcareous, fossiliferous; grades below into black blocky clay containing sand layers with well preserved fossils. This grades down into dark- to light-gray silty carbonaceous micaceous clay. The lowest bed formerly exposed was glauconitic sandy marl containing spheroidal concretions at the bottom.
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:80780
Authorizer:A. Miller Enterer:J. Sessa
Modifier:J. Sessa Research group:GCP,marine invertebrate
Created:2008-05-07 07:44:59 Last modified:2018-05-13 15:34:05
Access level:the public Released:2008-05-07 07:44:59
Creative Commons license:CC BY
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]