Thursday, April 3, 2025

Bicidiocrinus wetherbyi Crinoid Calyx Fossil


This fossil appears to be a Bicidiocrinus wetherbyi (Wachsmuth and Springer, 1886). It was found in the Glen Dean formation of Grayson County, Kentucky USA. The fossil dates to the Mississippian Period. Thanks to Kenny for the images.


 

Wednesday, April 2, 2025

Petalodus Shark Tooth Fossil

These pictures show a Petalodus (Hall, 1858) shark tooth fossil. They were found in the Glen Dean Formation of Grayson County, Kentucky USA. The fossils date to the Mississippian Period. Thanks to Kenny for the images.

Sunday, March 30, 2025

Worm Tube Fossil


These pictures are of a worm tube fossil. Fossil found in the New Providence Formation of Clark County, Indiana USA. It dates to the Mississippian Period. Thanks to Kenny for the images.