Eutaw Formation

Eutaw Formation
Stratigraphic range: Upper Cretaceous
Type Geological formation
Sub-units Tombigbee Sand Member, Ingersoll Shale
Underlies Mooreville Chalk Formation
Overlies Tuscaloosa Group
Thickness 40 m (130 ft) to 120 m (390 ft)
Lithology
Primary Glauconitic sandstone
Location
Named for Eutaw, Alabama
Region Alabama, Georgia, Mississippi
Country  United States

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]

Contents

Vertebrate paleofauna

Mosasaurs

Mosasaurs of the Eutaw Formation
Taxa Species State Stratigraphic position Abundance Notes Images

Clidastes

Clidastes sp.[2]

Mosasaurines

Eonatator

E. sternbergii[2][4]

  1. E. sternbergii was formerly classified as Halisaurus sternbergii

Platecarpus

P. tympaniticus[2]

Selmasaurus

S. russelli[2]

Tylosaurus

Tylosaurus sp.[2]

Ornithodires

Dinosaur feathers have been found in the Ingersoll Shale of Georgia, which is a subunit of the Eutaw Formation.[3] Indeterminate hadrosaurid remains have been found in Mississippi.

Ornithodires of the Eutaw Formation
Genus Species State Stratigraphic position Abundance Notes Images

Pteranodon

Indeterminate

Pteranodontids

See also

References