Five Species of Crinoids on One Plate - Gilmore City, Iowa

These are eleven naturally associated fossil crinoids of the species Cercidocrinus cirrifer (#2), Cercidocrinus fimbria (#3), Dichocrinus multiplex (#7), Eretmocrinus tentor (#8) and Strimplecrinus campto (#21), collected from the Gilmore City Formation of Gilmore City, Iowa. The rock has been meticulously removed using air abrasives to reveal the beautiful structures of these crinoids.

#2 - Cercidocrinus cirrifer (largest is .5" long)
#3 - Cercidocrinus fimbria (.8" wide)
#7 - Dichocrinus multiplex (largest is .7" long)
#8 - Eretmocrinus tentor (largest is .7" long)
#21 - Strimplecrinus campto (.3" long)

It comes with an acrylic display stand.

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