22 Crinoid Fossils (5 Species) - Gilmore City, Iowa

Crinoid Fossils ( Species) - Gilmore City, Iowa #86375

This is an 10.3" wide fossil crinoid plate containing 22 individual crinoids, representing five different species. It was collected from the Gilmore City Formation in Gilmore City, Iowa. It comes with an acrylic display stand.

Reference numbers for crinoid identification (red stickers):
#1 - Aorocrinus iola
#2 - Cercidocrinus cirrifer
#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