Three Crinoid Fossils (3 Species) - Gilmore City, Iowa

Three Crinoid Fossils ( Species) - Gilmore City, Iowa #88854

This is an 4.8" wide fossil crinoid plate containing three individual crinoids, representing three seperate species. It was collected from the Gilmore City Formation in Gilmore City, Iowa. It comes with an acrylic display stand. A portion of the rock that broke free, likely during the extraction process, has been glued back to the specimen (contains crinoid #8).

Reference numbers for crinoid identification (white stickers):

#1 - Aorocrinus iola
#7 - Dichocrinus multiplex
#8 - Eretmocrinus tentor

Crinoids, sometimes commonly referred to as sea lilies, are animals, not plants. They are echinoderms related to starfish, sea urchins, and brittle stars. Many crinoid traits are like other members of their phylum; such traits include tube feet, radial symmetry, a water vascular system, and appendages in multiples of five (pentameral). They first appeared in the Ordovician (488 million years ago) and some species are still alive today.

About Crinoids