Tuesday, March 28, 2017
This image is of what appears to be a disarticulated Taxocrinus whitfieldi crinoid calyx. 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 image.
Monday, March 27, 2017
It is a Zamites feneonis (Brongniart) found in a mine in Orbagnoux Ain France. Fossil dates to the Jurassic Period.