Pea River at Elba Dam (ACof-1): Ypresian, Alabama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Scleractinia - Columastreidae
Haimesastraea conferta
2 specimens
original and current combination Haimesiastraea
Anthozoa - Scleractinia - Dendrophylliidae
Balanophyllia haleana (Milne-Edwards and Haime 1848)
9 specimens
Balanophyllia desmophyllum Milne-Edwards and Haime 1848
7 specimens
Cephalopoda - Nautilida - Hercoglossidae
Aturoidea sp. Vredenburg 1925
1 specimen
Gastropoda - Solariellidae
Solariella sylvaerupis
1 specimen
Gastropoda - Turritellidae
Turritella gilberti
46 specimens
Gastropoda - Rostellariidae
Calyptraphorus trinodiferus
1 specimen
Gastropoda - Neogastropoda - Olividae
Ancilla staminea Conrad 1832
4 specimens
Ancilla staminea maternae
Gastropoda - Neogastropoda - Buccinidae
Pseudoliva scalina Heilprin 1881
1 specimen
recombined as Popenoeum scalina
Pseudoliva vetusta (Conrad 1833)
2 specimens
original and current combination Monoceros vetusta
Pseudoliva vetusta forma
Gastropoda - Neogastropoda - Fasciolariidae
Clavilithes sp. Swainson 1840
1 specimen
"Clavilithes kennedyanus"
Gastropoda - Neogastropoda - Volutidae
? Caricella heilprini
1 specimen
Athleta tuomeyi
2 specimens
Gastropoda - Naticidae
Sigatica clarkeana (Aldrich 1887)
75 specimens
Sinum fiski
1 specimen
Euspira sabina (Palmer 1937)
7 specimens
original and current combination Natica semilunata sabina
Gastropoda - Heterostropha - Acteonidae
Tornatellaea bella Conrad 1860
12 specimens
Gastropoda - Heterostropha - Mathildidae
Gegania sp. Jeffreys 1884
1 specimen
Bivalvia - Arcida - Arcidae
Arca (Arca) hatchetigbeensis (Harris 1897)
3 specimens
Bivalvia - Pectinida - Pectinidae
Chlamys choctavensis (Aldrich 1895)
7 specimens
Bivalvia - Ostreida - Gryphaeidae
Gigantostrea sylvaerupis
20 specimens
Bivalvia - Ostreida - Ostreidae
? Odontogryphaea informal sp. A Ihering 1903
73 specimens
Ostrea sp. Linnaeus 1758
15 specimens
Bivalvia - Pholadida - Corbulidae
Vokesula aldrichi (Meyer 1885)
2 specimens
Bivalvia - Cardiida - Veneridae
Pitar nuttalliopsis
4 specimens
Macrocallista sylvaerupis
79 specimens
Bivalvia - Cardiida - Ungulinidae
Diplodonta hopkinsensis
1 specimen
Bivalvia - Cardiida - Cardiidae
Nemocardium harrisi
2 specimens
Bivalvia - Cardiida - Tellinidae
Tellina subtriangularis
2 specimens
Bivalvia - Carditida - Astartidae
Lirodiscus smithvillensis Harris 1895
2 specimens
Bivalvia - Carditida - Carditidae
Venericardia turneri
10 specimens
Venericardia sp. Lamarck 1801
2 specimens
Venericardia bashiplata Gardner and Bowles 1939
17 specimens
Venericardia horatiana Gardner 1927
81 specimens
recombined as Venericardia (Venericor) horatiana
Bivalvia - Nuculanida - Nuculanidae
Calorhadia pharcida (Dall 1898)
27 specimens
recombined as Calorhadia (Calorhadia) pharcida
Scaphopoda - Dentaliida - Dentaliidae
Dentalium microstria Heilprin 1880
48 specimens
Echinoidea - Cassiduloida - Neolampadidae
Eurhodia elbana n. sp. Cooke 1942
Cooke 1942
Chondrichthyes - Batoidea
Batoidea indet.
1 specimen
tooth
see common names

Geography
Country:United States State/province:Alabama County:Coffee
Coordinates: 31.4° North, 86.1° West (view map)
Paleocoordinates:33.1° North, 71.7° 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 Member:Bashi Marl
Stratigraphic resolution:group of beds
Stratigraphy comments: The Bashi Marl Member of the Hatchetigbee Formation is retained in the Eocene M. subbotinae Interval Zone. The Paleocene-Eocene boundary is near the base of the Bashi Marl Member of the Hatchetigbee Form
Lithology and environment
Primary lithology:fine,medium,glauconitic,gray,green unlithified calcareous sandstone
Lithology description: Fossiliferous glauconitic sand bed, in which large spheroidal concretions have formed, contains foraminifera and a great variety of well-preserved mollusks. Sand, dark-greenish-gray (5GY 4/1) when wet to greenish-gray (5GY 6/1) and light-olive-gray (5Y 6/1), fine- to medium-grained, very glauconitic, very calcareous.
Environment:transition zone/lower shoreface
Geology comments: A transgressive lag composed of glauconitic and calcareous marl and sand, representing an inner shelf environment (Dockery, 1980, 1998; Gibson, 1982; Mancini, 1984; Siesser, 1983; Ingram, 1991; Mancini and Tew, 1991, 1995; Sessa et al., 2012b). Elba Dam is the deepest site for the Bashi Marl; using foraminiferal assemblages, Gibson (1988) estimated the Bashi Marl to be ~70 m deep at Elba, AL. This water depth estimate, contrasted with more clear shoreface deposits in the shallowest part of the formation (eastern Mississippi) suggests that an offshore transition environment is appropriate here.
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:80785
Authorizer:A. Miller, M. Uhen Enterer:J. Sessa, M. Uhen
Modifier:M. Clapham Research group:GCP,marine invertebrate
Created:2008-05-08 07:50:49 Last modified:2019-08-10 22:25:56
Access level:the public Released:2008-05-08 07:50:49
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:

32917 C. W. Cooke. 1942. Cenozoic irregular echinoids of the Eastern United States. Journal of Paleontology 16:1-62 [L. Villier/L. Villier]
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]