Eutaw Formation
Template:Short description Template:Infobox Rockunit The Eutaw Formation is a geological formation in North America, within the U.S. states of Alabama, Georgia, and Mississippi. The strata date from the late Coniacian to the early Santonian stage of the Late Cretaceous.[1] It consists of the upper Tombigbee Sand Member and an unnamed lower member. Dinosaur, mosasaur, and pterosaur remains have been recovered from the Eutaw Formation.[2][3]
Vertebrate paleofauna
Cartilaginous fish
| Cartilaginous fish of the Eutaw Formation | ||||||
|---|---|---|---|---|---|---|
| Taxa | Species | State | Stratigraphic position | Abundance | Notes | Images |
|
A. kopingensis[4] |
A lamniform shark |
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|
B. schwimmeri[4] |
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B. mcnultyi[4] |
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B. wichitaensis[4] |
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C. sp.[4] |
A lamniform shark | |||||
|
C. globidens[4] |
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|
C. decipiens (=C. meyeri or C. saginatus?)[4] |
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|
C. greeni[4] |
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|
C. semiplicatus[4] |
A lamniform shark | |||||
|
C. appendiculata[4] |
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|
C. serrata[4] |
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|
C. mantelli[4] |
A lamniform shark | |||||
|
E. sp.[4] |
A chimaera | |||||
|
H. sp.[4] |
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|
H. sp.[4] |
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|
I. mira[4] |
A rajiform | |||||
|
Lissodus (=Lonchidion?) |
L. sp.[4] |
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|
P. angustidens[4] |
A lamniform shark | |||||
|
P. laevis[4] |
A lamniform shark | |||||
|
P. mcnultyi[4] |
A rajiform | |||||
|
P. mortoni[4] |
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P. polygyrus[4] |
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P. rugosus[4] |
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P. triangularis (=P. vermiculata and/or P. chattahoochiensis?)[4] |
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|
Rajiformes indet.[4] |
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|
S. raphiodon[4] |
Lamniform sharks | |||||
|
S. texanus[4] |
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|
S. sp.[4] |
A rajiform | |||||
|
S. falcatus[4] |
Lamniform sharks | |||||
|
S. kaupi[4] |
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|
S. pristodontus[4] |
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Bony fish
| Bony fish of the Eutaw Formation | ||||||
|---|---|---|---|---|---|---|
| Taxa | Species | State | Stratigraphic position | Abundance | Notes | Images |
|
A. dunklei[4] |
A bonefish |
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|
A. phaseolus[4] |
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|
A. sp.?[4] |
A gar | |||||
|
B. sp.[4] |
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|
B. sp.[4] |
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|
E. petrosus[4] |
An enchodontid | |||||
|
H. priscus[4] |
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|
L. sp.[4] |
A gar | |||||
|
M. sp.[4] |
A coelacanthiform fish | |||||
|
P. puncatatus[4] |
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|
P. sp.[4] |
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|
S. apicalis[4] |
An aulopiform | |||||
|
X. audax[4] |
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Turtles
| Turtles of the Eutaw Formation | ||||||
|---|---|---|---|---|---|---|
| Taxa | Species | State | Stratigraphic position | Abundance | Notes | Images |
|
C. barberi[4] |
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|
P. gigas[4] |
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|
T. sp.[4] |
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|
T. sp.[4] |
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|
Trionychidae indet.[4] |
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Plesiosaurs
| Plesiosaurs of the Eutaw Formation | ||||||
|---|---|---|---|---|---|---|
| Taxa | Species | State | Stratigraphic position | Abundance | Notes | Images |
|
D. vetustus[4] |
An elasmosaurid |
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|
Elasmosauridae indet.[4] |
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Mosasaurs
| Mosasaurs of the Eutaw Formation | ||||||
|---|---|---|---|---|---|---|
| Taxa | Species | State | Stratigraphic position | Abundance | Notes | Images |
|
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|
G. alabamaensis[4] |
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|
P. sp.[4] |
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|
T. nepaeolicus[4] |
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|
T. proriger[4] |
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Crocodylians
| Crocodylians of the Eutaw Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | State | Stratigraphic position | Abundance | Notes | Images |
|
B. sp.[4] |
An eusuchian |
| ||||
|
D. rugosus?[4] |
An alligatoroid | |||||
|
L. sp.[4] |
An alligatoroid | |||||
Ornithodires
Dinosaur feathers have been found in the Ingersoll Shale of Georgia,[6][7] which is a subunit of the Eutaw Formation.[3] Indeterminate hadrosaurid remains have been found in Mississippi.[8] Ornithomimosaurs of medium-size and large-size have also been unearthed in Mississippi.[9]
| Ornithodires of the Eutaw Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | State | Stratigraphic position | Abundance | Notes | Images |
|
L. atopus[4] |
A hadrosauromorph dinosaur |
| ||||
|
Indeterminate |
A pteranodontid pterosaur | |||||
See also
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References
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