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This article contains a list of fossil-bearing stratigraphic units in the state of Arkansas, U.S. Sites. Group or Formation Period
The location of the state of Arkansas. 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]
This list of the Mesozoic 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 252.17 and 66 million years of age.
Physa is a genus of small, left-handed or sinistral, air-breathing freshwater snails, ... † Physa aridi Mezzalira, 1974 – fossil from Brazil [3]
Physa aridi is a fossil species of air-breathing freshwater snail, an extinct aquatic pulmonate gastropod mollusc in the family Physidae. This species has a small, left-handed (or sinistral) shell, as is always the case in this family. Physa aridi dates from the Senonian (Upper Cretaceous) of the Bauru Group, in São Paulo state, Brazil. [1]
Location of Arkansas in the United States. Arkansas is located in the southeastern United States, in the West South Central Census Bureau division. Arkansas covers an area of 53,179 square miles (137,733 km²) and ranks as the 29th largest state by size. [7]
Diamond City is located on the south shore of Bull Shoals Lake between east and west Sugarloaf Creeks. The community of Lead Hill lies two miles south on Route 7.. According to the United States Census Bureau, the city has a total area of 2.68 square miles (6.9 km 2), all of it land.
Phillips County is a county located in the eastern part of the U.S. state of Arkansas, in what is known as the Arkansas Delta along the Mississippi River. As of the 2020 census, the population was 16,568. [1] The county seat is Helena–West Helena. [2] Phillips County is Arkansas's seventh (7th) county, formed on May 1, 1820.