Point A Dam Site: Lutetian, Alabama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Crocodylidae
62 specimens
all teeth
Reptilia - Testudines
5 specimens
previously identified as Emydid in Holman and Case, 1988 [ref: 688]
Reptilia - Testudines - Trionychidae
3 specimens
    = Trionychidae indet. Gray 1825
Jasinski 2013
Reptilia - Palaeophiidae
41 specimens
a range of sizes of vertebrae, including some very small ones
Reptilia - Boidae
1 specimen
vertebra
Mammalia
Clayton 2009
marine mammals
Tetraodontiformes - Ostraciidae
Clayton et al. 2013
Actinopteri - Lepisosteiformes - Lepisosteidae
Clayton et al. 2013
Actinopteri - Siluriformes
Arioidea indet. Bleeker 1862
Clayton et al. 2013
Actinopteri - Istiophoriformes - Sphyraenidae
? Sphyraena sp. Artedi 1793
"or Cybium ?"
Sphyraena sp. Artedi 1793
Clayton et al. 2013
Actinopteri
Clayton et al. 2013
Actinopteri - Scombriformes - Trichiuridae
Trichiurides sp. Winkler 1874
Clayton et al. 2013
Clayton et al. 2013
Actinopteri - Scombriformes - Scombridae
Clayton et al. 2013
Actinopteri - Acanthuriformes - Sciaenidae
? Aplodinotus sp. Rafinesque 1818
"or Albula ?"
Clayton et al. 2013
Actinopteri - Albuliformes - Albulidae
Albula sp. Gronow 1763
Clayton et al. 2013
Actinopteri - Elopiformes - Phyllodontidae
Egertonia sp. Cocchi 1866
Clayton et al. 2013
Egertonia isodonta Cocchi 1866
Chondrichthyes - Rhinopristiformes - Pristidae
Pristis sp. Linck 1790
Clayton et al. 2013
Pristis lathami Galeotti 1837
Chondrichthyes - Myliobatiformes - Gymnuridae
Gymnura sp. Van Hasselt 1823
Clayton et al. 2013
Chondrichthyes - Myliobatiformes - Myliobatidae
Clayton et al. 2013
Myliobatis dixoni Agassiz 1843
Clayton et al. 2013
Myliobatis sp. Cuvier 1816
Clayton et al. 2013
Aetobatis sp. (Blainville 1816)
cf. Aetobatus sp. Blainville 1816
Clayton et al. 2013
Chondrichthyes - Myliobatiformes - Dasyatidae
Dasyatis sp. Rafinesque 1810
Jacquhermania duponti (Winkler 1874)
Clayton et al. 2013
Chondrichthyes - Myliobatiformes - Rhinopteridae
Rhinoptera sp. Cuvier 1829
Clayton et al. 2013
Chondrichthyes - Myliobatiformes - Mobulidae
Burnhamia sp. Cappetta 1976
Chondrichthyes - Myliobatiformes
Coupatezia woutersi Cappetta 1982
Clayton et al. 2013
Chondrichthyes - Rajiformes - Rhinobatidae
Rhinobatos sp. Link 1790
Clayton et al. 2013
Chondrichthyes - Synechodontiformes - Palaeospinacidae
cf. Synechodus sp. Woodward 1888
Clayton et al. 2013
Chondrichthyes - Lamniformes - Odontaspididae
Clayton et al. 2013
Clayton et al. 2013
Jaekelotodus robustus (Leriche 1905)
Clayton et al. 2013
Clayton et al. 2013
Chondrichthyes - Lamniformes - Mitsukurinidae
Clayton et al. 2013
Chondrichthyes - Lamniformes - Carchariidae
Chondrichthyes - Lamniformes - Otodontidae
Carcharocles sp. Jordan 1923
Carcharocles auriculatus (Blainville 1818)
Clayton et al. 2013
Chondrichthyes - Orectolobiformes - Ginglymostomatidae
Nebrius sp. Rüppell 1837
Nebrius cf. thielensis (Winkler 1874)
Clayton et al. 2013
Chondrichthyes - Orectolobiformes - Orectolobidae
Clayton et al. 2013
Clayton et al. 2013
Chondrichthyes - Carcharhiniformes - Triakidae
Pachygaleus lefevrei (Daimeries 1891)
Clayton et al. 2013
cf. Galeorhinus sp. de Blainville and Prévost 1816
Clayton et al. 2013
Chondrichthyes - Carcharhiniformes - Galeocerdidae
Clayton et al. 2013
Chondrichthyes - Carcharhiniformes - Carcharhinidae
Carcharinidae indet. (Jordan and Evermann 1896)
Clayton 2009
Physogaleus secundus (Winkler 1876)
Clayton et al. 2013
Physodon sp. Müller and Henle 1839
Clayton et al. 2013
Galeorhinus recticonus (Winkler 1873)
Abdounia minutissima (Winkler 1874)
Clayton et al. 2013
Rhizoprionodon sp. Whitley 1929
Clayton et al. 2013
unclassified
Clayton et al. 2013
Malacostraca - Decapoda - Retroplumidae
Feldmann and Portell 2007
see common names

Geography
Country:United States State/province:Alabama County:Covington
Coordinates: 31.4° North, 86.5° West (view map)
Paleocoordinates:34.7° North, 66.8° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Paleogene Epoch: Eocene
Stage: Lutetian 10 m.y. bin: Cenozoic 2
*Period:Early/Lower Tertiary *Epoch:Early/Lower Eocene - Middle Eocene
*Local age/stage:Bridgerian
Key time interval: Lutetian
Age range of interval: 48.07 - 41.03 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Claiborne Formation:Tallahatta
Stratigraphic resolution:formation
Stratigraphy comments: Original stratigraphy: "The exposure situated below the Point "A" Dam is in the upper unit of the Tallahatta Formation, which in turn underlies the lowermost member of the Lisbon Formation..." Lat long is for the Point A Dam.

Later placed in the lowermost Lisbon Formation by Clayton et al., 2013.
Lithology and environment
Primary lithology: poorly lithified sandy sandstone
Secondary lithology: poorly lithified claystone
Lithology description: "The formation consists primarily of sand, sandstone, clay, and claystone, ranging in thickness from 20 to 40 m at the outcropping."
Environment:estuary/bay
Geology comments: "The formation consists primarily of sand, sandstone, clay, and claystone, ranging in thickness from 20 to 40 m at the outcropping."


Taphonomy
Modes of preservation:body,charcoalification
Size of fossils:macrofossils
Disassociated major elements:all
Fragmentation:occasional
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Collection method comments: Turtles, snakes, croc (and a charred pine knot possibly used as a "stomach stone") are described herein; at least 21 fish taxa are noted and were in the proccess of being described at the time of this publication.
Metadata
Also known as:Point "A" Dam Site, Conecuh River
Database number:13346
Authorizer:J. Alroy, P. Holroyd, M. Uhen Enterer:R. Whatley, P. Holroyd, M. Uhen
Modifier:M. Uhen Research group:vertebrate
Created:2002-03-01 15:03:16 Last modified:2025-02-22 15:12:02
Access level:the public Released:2002-03-01 15:03:16
Creative Commons license:CC0
Reference information

Primary reference:
688.5% 22180J. A. Holman and G. R. Case. 1988. Reptiles from the Eocene Tallahatta Formation of Alabama. Journal of Vertebrate Paleontology 8(3):328-333 [J. Alroy/J. Alroy/J. Alroy]

Secondary references:

40972 A. A. Clayton. 2009. Analysis of an Eocene Bonebed Contained within the Tallahatta Formation, of Covington County, Alabama. NAPC Abstracts 9:337 [M. Uhen/M. Uhen]
71116 A. A. Clayton, C. N. Ciampaglio, and D. J. Cicimurri. 2013. An inquiry into the stratigraphic occurrence of a Claibornian (Eocene) vertebrate fauna from Covington County, Alabama. Bulletin of the Alabama Museum of Natural History 31(2):60-73 [M. Uhen/M. Uhen/M. Uhen]
71654 R. M. Feldmann and R. W. Portell. 2007. First report of Costacopluma Collins and Morris, 1975 (Decapoda: Brachyura: Retroplumidae) from the Eocene of Alabama, U.S.A. Journal of Crustacean Biology 21(1):90-96 [M. Uhen/M. Uhen]
53869decapod R. M. Feldmann, C. E. Schweitzer, and R. W. Portell. 2014. Crabs (Decapoda, Brachyura) from the lower Paleocene of Alabama, USA. Scripta Geologica 147:135-151 [C. Schweitzer/L. Baltzly]
18097 P. A. Holroyd, J. F. Parham, and J. H. Hutchison. 2005. A reappraisal of some Paleogene turtles from the southeastern United States. Journal of Vertebrate Paleontology 25(4):979-982 [P. Holroyd/P. Holroyd]
58398 S. E. Jasinski. 2013. Review of the fossil Trionychidae (Testudines) from Alabama, including the oldest record of trionychid turtles from eastern North America. Bulletin of the Alabama Museum of Natural History 31(2):46-59 [P. Holroyd/P. Holroyd]