This remarkable find of a Paleozoic shark tooth in central Kentucky is a Saivodus striatus. This type of fossil was originally described by Agassiz in 1843 as the genus Cladodus being a member of the Ctenacanthiformes. Fossil was found in Hardin County (?) of Kentucky in the Mississippian Period Salem Limestone (Meramecian), member of Borden Formation.
The name was changed in a Journal of Vertebrate Paleontology (26(2):253-266. 2006) COMMENTS ON THE SELACHIAN GENUS CLADODUS AGASSIZ, 1843 by Christopher J. Duffin and Michal Ginter.
Here is a link to more pictures of Saivodus found in the Viséan, Mountain Limestone, vicinity of Armagh, Northern Ireland: CLICK HERE
Here is a link to another found in a cave in Tennessee: CLICK HERE
Here is a link to the shark fossils found at Mammoth Cave, Kentucky in 2020: CLICK HERE
Fossil was found and prepped by Mark Palatas of Louisville.
