What you have here is the beginnings of geodization.
Some of these geodized stems are huge.
Thank you Brian
They are all from the Mississippian, Glen Dean Golconda formation near Bloomington.
Thank you Brian
These crinoids were huge with stems probably upwards of 10 ft. tall with huge crowns as well. For some reason the crowns didn't preserve. What you see are two types of runners coming off of the main stem: you have some branching that occurred along the main stem as it rose to the crown and then you have the anchor branches that grew down into the seabed to support the crinoid.
Thank you Brian
Some more big ones.
Just showing off my camera.
More effects (I love this camera!
Here's your bug Patty.
What a beaut he is!