Mississippian Rock

Here is the large rock I have been studying that came from Hodgenville, Kentucky (birthplace of American President Abraham Lincoln).

Here is a calcite or quartz cavity with Fenestella bryozoan around it.

More Mississippian Bryozoans

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 base for the bryozoan or maybe part of a blastoid?
All I have found at the Hodgenville, Kentucky site are bryozoan remains and some fragments of brachiopods and gastropods.

Fenestella Bryozoan

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 Fenestella.


Here is something that is kind of neat. You can see lines squiggling around. Those lines are layers of Fenestella layered in the rock. They look like little lines of dots.