AlChBu Rep 3: Ypresian, Alabama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Scaphopoda - Gadilida - Gadilidae
Cadulus sp. Philippi 1844
1 specimen
Scaphopoda - Dentaliida - Dentaliidae
Dentalium microstria Heilprin 1880
8 specimens
Gastropoda - Turritellidae
14 specimens
Gastropoda - Neogastropoda - Nassariidae
4 specimens
? Nassarius sp. Duméril 1806
3 specimens
Gastropoda - Naticidae
Polinices sp. Monfort 1810
8 specimens
Bivalvia - Carditida - Carditidae
22 specimens
42 specimens
Bivalvia - Cardiida - Veneridae
17 specimens
3 specimens
Bivalvia - Cardiida - Tellinidae
2 specimens
Bivalvia - Pholadida - Corbulidae
Vokesula aldrichi (Meyer 1885)
19 specimens
Bivalvia - Lucinida - Lucinidae
Linga pomilia Conrad 1833
10 specimens
Linga pomilia smithi
Bivalvia - Pectinida - Pectinidae
Chlamys choctavensis (Aldrich 1895)
3 specimens
unclassified
1 specimen
Bivalvia - Ostreida - Ostreidae
1 specimen
Bivalvia - Nuculida - Nuculidae
Nucula ovula Lea 1833
1 specimen
Bivalvia - Nuculanida - Nuculanidae
4 specimens
1 specimen
1 specimen
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:estimated from map
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
Stratigraphy comments: Rep 1 is 8.8m laterally from Rep 2 and about 40cm above it
Rep 3 is 3.8m laterally from Rep 1
Lithology and environment
Primary lithology:glauconitic unlithified muddy,calcareous sandstone
Lithology description: unlithified glaucontic calcareous clayey sand
Environment:shallow subtidal indet.
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Collection methods and comments
Collection methods:bulk,sieve
Minimum sieve size:2.000
Rock censused:121 g
Reason for describing collection:paleoecologic analysis
Collection method comments: Gastropod shells were only counted if they contained the apex of the shell; bivalve shells were only counted if they contained the umbo
Metadata
Database number:90040
Authorizer:J. Sessa Enterer:L. Eccles
Modifier:J. Sessa Research group:GCP,marine invertebrate
Created:2009-07-01 16:37:53 Last modified:2025-02-22 15:12:02
Access level:the public Released:2009-07-01 16:37:53
Creative Commons license:CC0
Reference information

Primary reference:
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]

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]