Eutaw Formation, Georgia (Cretaceous to of the United States)

Where: Chattahoochee County County, Georgia (32.4° N, 84.9° W: paleocoordinates 32.3° N, 54.1° W)

When: Eutaw Formation, Early/Lower Santonian to Early/Lower Santonian (85.8 - 83.5 Ma)

Environment/lithology: marine; lithified sandstone and lithified mudstone

• 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.

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 61769: authorized by Juergen Kriwet, entered by Wolfgang Glaeser on 29.06.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Chondrichthyes
 Hybodontiformes - Lonchidiidae
"Lissodus babulskii" = Lonchidion babulskii
"Lissodus babulskii" = Lonchidion babulskii Cappetta and Case 1975 elasmobranch
 Hybodontiformes - Hybodontidae
Hybodus sp.
Hybodus sp. Agassiz 1834 elasmobranch
 Hybodontiformes - Ptychodontidae
Ptychodus mortoni
Ptychodus mortoni Mantell 1836 elasmobranch
 Lamniformes - Otodontidae
"Cretolamna appendiculata" = Cretalamna appendiculata
"Cretolamna appendiculata" = Cretalamna appendiculata Agassiz 1835 mackerel shark
 Lamniformes - Pseudoscapanorhynchidae
"Cretodus borodini" = Protolamna borodini
"Cretodus borodini" = Protolamna borodini Cappetta and Case 1975 mackerel shark
 Lamniformes - Anacoracidae
Squalicorax falcatus
Squalicorax falcatus Agassiz 1843 crow shark
 Lamniformes - Mitsukurinidae
"Microdontaspis tenuis n. gen. n. sp." = Scapanorhynchus tenuis, "Scapanorhynchus raphiodon" = Scapanorhynchus rhaphiodon
"Microdontaspis tenuis n. gen. n. sp." = Scapanorhynchus tenuis Case et al. 2001 goblin shark
"Scapanorhynchus raphiodon" = Scapanorhynchus rhaphiodon Agassiz 1843 goblin shark
 Orectolobiformes - Hemiscylliidae
Chiloscyllium sp.
Chiloscyllium sp. Müller and Henle 1837 carpet shark
 Orectolobiformes -
Columbusia fragilis n. gen. n. sp.
Columbusia fragilis n. gen. n. sp. Case 2001 carpet shark
 Rajiformes - Sclerorhynchidae
Borodinopristis ackermani n. sp., Ischyrhiza georgiensis n. sp., Ischyrhiza mira
Ischyrhiza mira Leidy 1856 ray
 Rajiformes - Ptychotrygonidae
Ptychotrygon chattahoocheensis n. sp., Ptychotrygon sp., Ptychotrygon cf. triangularis, Ptychotrygon eutawensis n. sp.
Ptychotrygon sp. Jaekel 1894 ray
Ptychotrygon eutawensis n. sp. Case et al. 2001 ray
 Rajiformes -
Erguitaia benningensis n. sp., Erguitaia rugosa n. sp., Pseudohypolophus ellipsis n. sp., Protoplatyrhina renae
Erguitaia rugosa n. sp. ray
Pseudohypolophus ellipsis n. sp. Case et al. 2001 guitarfish
Protoplatyrhina renae Case 1978 guitarfish
 Squatiniformes - Squatinidae
Squatina hassei
Squatina hassei Leriche 1929 angel shark