The Duck Creek Formation is a
geologic formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exp ...
in
Texas
Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...
. It preserves
fossils
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...
dating back to the
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...
period
Period may refer to:
Common uses
* Period (punctuation)
* Era, a length or span of time
*Menstruation, commonly referred to as a "period"
Arts, entertainment, and media
* Period (music), a concept in musical composition
* Periodic sentence (o ...
.
Invertebrate Paleofauna
*''
Neithia''
*''
Gryphaea
''Gryphaea'', one of the genera known as devil's toenails, is a genus of extinct oysters, marine bivalve mollusks in the family Gryphaeidae.
These fossils range from the Triassic period to the middle Paleogene period, but are mostly restricte ...
''
*''
Eopachydiscus''
:: ''E. marcianus''
::''E. laevicanaliculatum''
*''
Mortoniceras''
:: ''M. equidistans''
:: ''M. fortworthens''
*''
Idohamites fredmonti''
*''
Macraster''
Vertebrate Paleofauna
*''
Leptostyrax macrorhiza''
*''
Reidus hilli''
See also
*
List of fossiliferous stratigraphic units in Texas
This article contains a list of fossil-bearing stratigraphic units in the state of Texas, U.S.
Sites
See also
* Paleontology in Texas
References
*
*
{{DEFAULTSORT:Fossiliferous stratigraphic units in Texas
Fossil
Texas
Tex ...
*
Paleontology in Texas
Paleontology in Texas refers to paleontological research occurring within or conducted by people from the U.S. state of Texas. Author Marian Murray has said that "Texas is as big for fossils as it is for everything else." Some of the most import ...
References
*
Cretaceous geology of Texas
{{Cretaceous-stub