This image shows a nice crinoid calyx fossil called Zeacrinites wortheni  (Hall, 1858).  It was found in the Indiana Springs Member of Cr...

Starting off the new year with a picture of a super rare fossil find. This is a blastoid fossil with a stem and part of its very thin fe...

These images are quite interesting in that they show possible parasites or byrozoans on a crinoid stem fossil. These fossil was found in ...