PRI 791: Ypresian, Alabama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Scaphopoda - Gadilida - Gadilidae
Cadulus sp. Philippi 1844
3 individuals
Scaphopoda - Dentaliida - Dentaliidae
Dentalium microstria Heilprin 1880
9 individuals
Gastropoda - Opisthobranchiata - Retusidae
2 individuals
Gastropoda - Heterostropha - Mathildidae
Mathilda sp. Semper 1865
1 individual
Gastropoda - Heterostropha - Acteonidae
Tornatellaea bella Conrad 1860
1 individual
Gastropoda - Turritellidae
191 individuals
Gastropoda - Ampullinidae
3 individuals
Ampullella recurva var
Gastropoda - Neotaenioglossa - Calyptraeidae
Calyptraea aperta (Solander 1766)
1 individual
Gastropoda - Neogastropoda - Turridae
2 individuals
2 individuals
Coronia childreni (Lea 1833)
3 individuals
Coronia childreni 'var.'
1 individual
Gastropoda - Neogastropoda - Raphitomidae
10 individuals
Gastropoda - Neogastropoda - Nassariidae
Dockery 1980
9 individuals
6 individuals
Gastropoda - Neogastropoda - Fasciolariidae
1 individual
Gastropoda - Neogastropoda - Buccinidae
3 individuals
9 individuals
Gastropoda - Xenophoridae
Xenophora sp. Fischer von Waldheim 1807
1 individual
Gastropoda - Naticidae
Natica sp. Scopoli 1777
6 individuals
Euspira marylandica (Conrad 1865)
2 individuals
Bivalvia - Carditida - Carditidae
Venericardia spp. Lamarck 1801
2 individuals
Bivalvia - Cardiida - Veneridae
54 individuals
11 individuals
Bivalvia - Cardiida - Cardiidae
1 individual
Bivalvia - Cardiida - Tellinidae
Tellina sp. Linnaeus 1758
1 individual
5 individuals
Bivalvia - Pholadida - Corbulidae
Vokesula aldrichi (Meyer 1885)
6 individuals
Bivalvia - Lucinida - Lucinidae
Linga pomilia Conrad 1833
17 individuals
Linga pomilia smithi
Epilucina sp. Dall 1901
3 individuals
Bivalvia - Ostreida - Ostreidae
Odontogryphaea sp. Ihering 1903
1 individual
Odontogryphaea ? sp. A
Bivalvia - Nuculida - Nuculidae
Nucula ovula Lea 1833
16 individuals
Bivalvia - Nuculanida - Nuculanidae
11 individuals
3 individuals
6 individuals
see common names

Geography
Country:United States State/province:Alabama County:Clarke
Coordinates: 31.9° North, 88.1° West (view map)
Paleocoordinates:35.6° North, 64.5° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
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:bed
Stratigraphy comments: None given.
Lithology and environment
Primary lithology:glauconitic,gray,green unlithified calcareous claystone
Lithology description: unlithified greenish grey sandy, glauconitic, calcareous clay
Environment:shallow subtidal indet.
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Collection methods and comments
Collection methods:bulk,sieve,survey of museum collection
Minimum sieve size:2.000
Reason for describing collection:paleoecologic analysis
Museum repositories:PRI
Collection method comments: J. Sessa sieved and identified this bulk sample from the PRI collection: #791
Gastropod shells were only counted if they contained the apex of the shell; bivalve shells were only counted if they contained the umbo. Collected by G.D. Harris, R. Flower and K.V.W. Palmer, Paleontological Inst. Exp. 1935. Field notebook No. 34. 1+/- bottles broken, discarded 9/3/1974.

Metadata
Database number:89873
Authorizer:J. Sessa Enterer:L. Eccles
Modifier:J. Sessa Research group:GCP,marine invertebrate
Created:2009-06-19 07:54:16 Last modified:2025-02-22 15:12:02
Access level:the public Released:2009-06-19 07:54:16
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:

11842 D. T. Dockery. 1980. Invertebrate Macropaleontolgy of the Clarke County Mississippi Area. Bulletin - Mississippi Geological, Economic and Topographic Survey 122 [M. Kosnik/M. Kosnik/L. Eccles]
35561 G. D. Harris. 1919. Pelecypoda of the St. Maurice and Claiborne stages. Bulletins of American Paleontology 6(31):1-208 [J. Sessa/L. Eccles]
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]