''Kinosternon arizonense'' is an extinct species of mud turtle in the genus '' Kinosternon''. Initially described by

Charles W. Gilmore Charles Whitney Gilmore (March 11, 1874 – September 27, 1945) was an American paleontologist who gained renown in the early 20th century for his work on vertebrate fossils during his career at the United States National Museum (now the N ...

in 1922. In 2016 McCord examined available Pliocene material of ''K. arizonense'' and concluded that the fossil material differs significantly from the extant turtles.MCCord, R.D. 2016. What is Kinosternon arizonense? Historical Biology 28:310–315 Joyce and Bourque (2016) concurred.Joyce, W.G. and Bourque, J.R. 2016. A review of the fossil record of turtles of the clade Pan-Kinosternoidea. Bulletin of the Peabody Museum of Natural History 57:57–95. Rhodin et al. (2017), listed ''Kinosternon arizonense'' as extinct.

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# {{Taxonbar, from=Q2713760 Pliocene turtles Pleistocene turtles Extinct turtles Fossil taxa described in 1922 arizonense