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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.
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]
The holotype specimen (University of Michigan Museum of Zoology #181292) was a fossil from Beaver Co., Oklahoma (Taylor 1954). [5] The species may be Holarctic in distribution based on shells found in Ukraine (Degtyarenko, E. and V. Anistratenko 2011).
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. Hawaii; Iowa: The crinoid was proposed in 2018. [2] Minnesota: The giant beaver was proposed in 2022. [3] New ...
Physa is a genus of small, left-handed or sinistral, air-breathing freshwater snails, ... † Physa aridi Mezzalira, 1974 – fossil from Brazil [3]
Maryland's congressional districts since 2023 Maryland is divided into eight congressional districts , each represented by a member of the United States House of Representatives . After the 2020 census , the number of Maryland 's seats remained unchanged, giving evidence of stable population growth relative to the United States at large.
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]