The Eutaw Formation is a geological
formation
Formation may refer to:
Linguistics
* Back-formation, the process of creating a new lexeme by removing or affixes
* Word formation, the creation of a new word by adding affixes
Mathematics and science
* Cave formation or speleothem, a secondary ...
in
North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...
, within the
U.S. states of
Alabama,
Georgia, and
Mississippi. The strata date from the late
Coniacian
The Coniacian is an age or stage in the geologic timescale. It is a subdivision of the Late Cretaceous Epoch or Upper Cretaceous Series and spans the time between 89.8 ± 1 Ma and 86.3 ± 0.7 Ma (million years ago). The Coniacian is preceded by t ...
to the early
Santonian stage of the
Late Cretaceous.
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.
Vertebrate paleofauna
Mosasaurs
Ornithodires
Dinosaur feathers have been found in the
Ingersoll Shale
The Ingersoll Shale is a Late Cretaceous (Santonian) informal geological unit in eastern Alabama. Fourteen theropod feathers assigned to birds and possibly dromaeosaurids have been recovered from the unit.Knight et al., 2011 of
Georgia, which is a subunit of the Eutaw Formation.
Indeterminate hadrosaurid remains have been found in
Mississippi.
Ornithomimosaurs
Ornithomimosauria ("bird-mimic lizards") are theropod dinosaurs which bore a superficial resemblance to the modern-day ostrich. They were fast, omnivorous or herbivorous dinosaurs from the Cretaceous Period of Laurasia (now Asia, Europe and North ...
of medium-size and large-size have also been unearthed in Mississippi.
See also
*
List of fossil sites
References
{{Reflist
Upper Cretaceous Series of North America
Geologic formations of Alabama
Cretaceous Georgia (U.S. state)
Cretaceous Mississippi
Paleontology in Georgia (U.S. state)
Paleontology in Alabama