Pea River at Elba Dam (ACof-1): Ypresian, Alabama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa
- Scleractinia
- Dendrophylliidae
|
||||||||||
Balanophyllia haleana
(Milne-Edwards and Haime 1848)
|
9 specimens | |||||||||
Balanophyllia desmophyllum
Milne-Edwards and Haime 1848
|
7 specimens | |||||||||
Anthozoa
- Scleractinia
- Columastreidae
|
||||||||||
Haimesastraea conferta
|
2 specimens | |||||||||
original and current combination Haimesiastraea | ||||||||||
Echinoidea
- Cassiduloida
- Neolampadidae
|
||||||||||
Eurhodia elbana n. sp.
Cooke 1942
|
Cooke 1942 | |||||||||
Chondrichthyes
- Batoidea
|
||||||||||
Batoidea indet.
|
1 specimen | |||||||||
tooth | ||||||||||
Scaphopoda
- Dentaliida
- Dentaliidae
|
||||||||||
Dentalium microstria
Heilprin 1880
|
48 specimens | |||||||||
Cephalopoda
- Nautilida
- Hercoglossidae
|
||||||||||
Aturoidea sp.
Vredenburg 1925
|
1 specimen | |||||||||
Bivalvia
- Nuculanida
- Nuculanidae
|
||||||||||
Calorhadia pharcida
(Dall 1898)
|
27 specimens | |||||||||
recombined as Calorhadia (Calorhadia) pharcida | ||||||||||
Bivalvia
- Ostreida
- Gryphaeidae
|
||||||||||
Gigantostrea sylvaerupis
|
20 specimens | |||||||||
Bivalvia
- Ostreida
- Ostreidae
|
||||||||||
Ostrea sp.
Linnaeus 1758
|
15 specimens | |||||||||
? Odontogryphaea informal sp. A
Ihering 1903
|
73 specimens | |||||||||
Bivalvia
- Pectinida
- Pectinidae
|
||||||||||
Chlamys choctavensis
(Aldrich 1895)
|
7 specimens | |||||||||
Bivalvia
- Arcida
- Arcidae
|
||||||||||
Arca (Arca) hatchetigbeensis
(Harris 1897)
|
3 specimens | |||||||||
Bivalvia
- Pholadida
- Corbulidae
|
||||||||||
Vokesula aldrichi
(Meyer 1885)
|
2 specimens | |||||||||
Bivalvia
- Cardiida
- Cardiidae
|
||||||||||
Nemocardium harrisi
|
2 specimens | |||||||||
Bivalvia
- Cardiida
- Tellinidae
|
||||||||||
Tellina subtriangularis
|
2 specimens | |||||||||
Bivalvia
- Cardiida
- Ungulinidae
|
||||||||||
Diplodonta hopkinsensis
|
1 specimen | |||||||||
Bivalvia
- Cardiida
- Veneridae
|
||||||||||
Pitar nuttalliopsis
|
4 specimens | |||||||||
Macrocallista sylvaerupis
|
79 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 | ||||||||||
Gastropoda
- Naticidae
|
||||||||||
Sinum fiski
|
1 specimen | |||||||||
Euspira sabina
(Palmer 1937)
|
7 specimens | |||||||||
original and current combination Natica semilunata sabina | ||||||||||
Sigatica clarkeana
(Aldrich 1887)
|
75 specimens | |||||||||
Gastropoda
- Rostellariidae
|
||||||||||
Calyptraphorus trinodiferus
|
1 specimen | |||||||||
Gastropoda
- Neogastropoda
- Volutidae
|
||||||||||
Athleta tuomeyi
|
2 specimens | |||||||||
? Caricella heilprini
|
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
- Turritellidae
|
||||||||||
Turritella gilberti
|
46 specimens | |||||||||
Gastropoda
- Solariellidae
|
||||||||||
Solariella sylvaerupis
|
1 specimen | |||||||||
Gastropoda
- Heterostropha
- Acteonidae
|
||||||||||
Tornatellaea bella
Conrad 1860
|
12 specimens | |||||||||
Gastropoda
- Heterostropha
- Mathildidae
|
||||||||||
Gegania sp.
Jeffreys 1884
|
1 specimen | |||||||||
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] |