Cyathocrinites Crinoid With Long Stem - Crawfordsville

This is a beautifully preserved, 4.8" long (including stem) Cyathocrinites iowensis crinoid from the famous Witherspoon crinoid quarry near Crawfordsville, Indiana. The quality of preparation on this fossil is exquisite - using skillful air-abrasion techniques under a stereo microscope. It displays nicely on the included acrylic display stand.

It is believed that crinoids from the Ramp Creek Limestone were buried in sediment from nearby deltas during storms. The resulting siltstone deposits are soft enough that fossils can be extracted in exquisite, three-dimensional relief.