Eutaw Formation, Georgia: Early/Lower Santonian - Middle Santonian, Georgia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Rajiformes
Erguitaia benningensis n. sp.
Erguitaia rugosa n. sp.
Protoplatyrhina renae Case 1978
Pseudohypolophus ellipsis n. sp. Case et al. 2001
Chondrichthyes - Rajiformes - Sclerorhynchidae
Borodinopristis ackermani n. sp.
Ischyrhiza georgiensis n. sp.
Ischyrhiza mira Leidy 1856
Chondrichthyes - Rajiformes - Ptychotrygonidae
Ptychotrygon chattahoocheensis n. sp.
Ptychotrygon sp. Jaekel 1894
Ptychotrygon cf. triangularis (Reuss 1845)
Ptychotrygon eutawensis n. sp. Case et al. 2001
Chondrichthyes - Orectolobiformes - Hemiscylliidae
Chiloscyllium sp. Müller and Henle 1837
Chondrichthyes - Orectolobiformes
Columbusia fragilis n. gen., n. sp. Case 2001
Chondrichthyes - Lamniformes - Mitsukurinidae
Microdontaspis tenuis n. gen., n. sp. Case et al. 2001
recombined as Scapanorhynchus tenuis
Scapanorhynchus raphiodon (Agassiz 1843)
recombined as Lamna raphiodon
Chondrichthyes - Lamniformes - Pseudoscapanorhynchidae
Cretodus borodini (Cappetta and Case 1975)
recombined as Protolamna borodini
Chondrichthyes - Lamniformes - Anacoracidae
Squalicorax falcatus (Agassiz 1843)
Chondrichthyes - Lamniformes - Otodontidae
Cretolamna appendiculata (Agassiz 1835)
recombined as Cretalamna appendiculata
Chondrichthyes - Squatinidae
Squatina hassei Leriche 1929
Chondrichthyes - Hybodontiformes - Hybodontidae
Hybodus sp. Agassiz 1834
Chondrichthyes - Hybodontiformes - Lonchidiidae
Lissodus babulskii (Cappetta and Case 1975)
original and current combination Lonchidion babulskii
Chondrichthyes - Hybodontiformes - Ptychodontidae
Ptychodus mortoni Mantell 1836
see common names

Geography
Country:United States State/province:Georgia County:Chattahoochee County
Coordinates: 32.4° North, 84.9° West (view map)
Paleocoordinates:32.3° North, 54.1° West
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Santonian 10 m.y. bin:Cretaceous 6
Key time interval:Early/Lower Santonian - Middle Santonian
Age range of interval:86.30000 - 83.60000 m.y. ago
Stratigraphy
Formation:Eutaw
Lithology and environment
Primary lithology: lithified sandstone
Secondary lithology: lithified mudstone
Lithology description: Relatively clean sandstones; argillaceous, marly, sandstones; and sandy, marly mudstones. The vertebrate-tooth bearing beds at the primary collecting site are mostly argillaceous, marly sandstones deposited in marshy and lagoonal back-barrier environments of deposition.
Environment:marine indet.
Taphonomy
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:61769
Authorizer:J. Kriwet Enterer:W. Glaeser
Modifier:W. Glaeser Research group:vertebrate
Created:2006-06-29 06:07:14 Last modified:2006-06-29 09:38:34
Access level:the public Released:2006-06-29 06:07:14
Creative Commons license:CC BY
Reference information

Primary reference:
17807. G. R. Case, D. R. Schwimmer, P.D. Borodin and J.J. Leggett. 2001. A new selachian fauna from the Eutaw Formation (Upper Cretaceous/Early to Middle Santonian) of Chattahoochee County, Georgia. Palaeontographica Abteilung A 261(Lfg. 4-6):83-102 [J. Kriwet/W. Glaeser]