Monday, May 19, 2014

Unidentified Crinoid Holdfast

It is difficult to sometimes identify Devonian Period crinoid stems without their calyx. This specimen was found in Clark County, Indiana, USA. The fossil fragment has a lot of texture.

1 comment:

Dave said...

Definitely a stoloniferous crinoid stem. There are a couple of Crinoids in the Devonian that have such large stems with the stolons and I find them in a few of the formations up this way. Notably the Edgecliff member of the Onondaga Formation in NY which I think may correlate to the Jeffersonville Fm. in your neck of the woods.