Here is a picture taken in 2009 at Coopers Lane Quarry in Clark County Indiana USA. It appears to be an Elaecrinus verneuili (Römer [aka Ro...

This picture is of a Carboniferous Period bryozoan called Fenestella membranacea . It appears to have been found in Algeria and is stored i...

I am trying to figure out what these rings are on the rock I showed yesterday. This rock has layers of Fenestella all over it. Is it a bas...

Here is bryozoan from the Mississippian period from Hodgenville, Kentucky I just found. I am not sure the species but it appears to be genus...