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2" Fossil Crinoid (Gilbertsocrinus) Crown - Indiana
This is a Gilbertsocrinus tuberosus crinoid crown from the Edwardsville Formation crinoid beds near Montgomery County, Indiana. The quality of preparation on this fossil is wonderful, using skillful air-abrasion techniques under a stereo microscope to removed most of the rock.
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.
$45
SPECIES
Gilbertsocrinus tuberosus
LOCATION
Montgomery County, Indiana
FORMATION
Edwardsville Formation
SIZE
2 x 1.95"
CATEGORY
SUB CATEGORY
ITEM
#326043
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