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Paleontology in Arkansas refers to paleontological research occurring within or conducted by people from the U.S. state of Arkansas. The fossil record of Arkansas spans from the Ordovician to the Eocene. [1] Nearly all of the state's fossils have come from ancient invertebrate life. [1] During the early Paleozoic, much of Arkansas was covered ...
This list of the Paleozoic life of Arkansas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Arkansas and are between 541 and 252.17 million years of age.
Fossil of the Middle Ordovician-Silurian trilobite Sphaerexochus †Sphaerexochus †Spirifer †Stearoceras †Stigmaria †Stroboceras †Sutherlandia †Tesuquea †Triboloceras – tentative report †Tripteroceroides – tentative report; Trypanites †Tylonautilus †Valhallites †Wilkingia †Zia
This article contains a list of fossil-bearing stratigraphic units in the state of Arkansas, U.S. Sites. Group or Formation Period
Arkansas: still no state fossil in Arkansas, though the state designated Arkansaurus as its state dinosaur. [1] District of Columbia: Capitalsaurus is the state dinosaur of Washington D.C., but the District has not chosen a state fossil. Florida: There is no state fossil in Florida, though agatised coral, which is a fossil, is the state stone ...
The highest natural point is Raspberry Mountain at 2,358 feet (719 m). The headwaters of multiple rivers are found in this area, including the Caddo, Cossatot, and Little Missouri rivers. The Cross Mountains are located in Polk and Sevier counties, Arkansas and McCurtain County, Oklahoma. The highest natural point is Whiskey Peak at 1,670 feet ...
The Fayetteville Shale is a geologic formation of Mississippian age (354–323 million years ago) composed of tight shale within the Arkoma Basin of Arkansas and Oklahoma. [4] [7] It is named for the city of Fayetteville, Arkansas, and requires hydraulic fracturing to release the natural gas contained within.
The Pitkin Formation, or Pitkin Limestone, is a fossiliferous geologic formation in northern Arkansas that dates to the Chesterian Series of the late Mississippian. [4] This formation was first named the "Archimedes Limestone" by David Dale Owen in 1858, but was replaced in 1904. [3]