Wednesday, September 28, 2022

New Albany Shale Conodonts



Here are two freshly found conodont fossils in the New Albany Shale (Late Devonian Period). The first appears to be some sort of Spathognathodus sp. (Branson and Mehl, 1941). The second appears to be of the genus Elictognathus (Cooper, 1939). Both were found on a shale plate about 4 cm by 4 cm. Field of view for images was about 1 mm. Specimens were collected in Floyd County, Indiana, USA. Indiana Geological Survey Bulletin 41, Conodonts from the Jacob Chapel Bed (Mississippian) of the New Albany Shale in Southern Indiana by Carl B. Rexford (1969) was used for the identification of these fossils.