2.6" Halysiocrinus Crinoid Fossil - Crawfordsville, Indiana

This is a beautifully detailed Crinoid fossil of the species Halysiocrinus tunicatus from Crawfordsville, Indiana. The crown is 2.6" long and there is a small section of stem still attached This specimen has been microscopically prepared using air abrasives.

Crinoids are commonly known as sea lilies, though they are animals, not plants. They are echinoderms related to starfish, sea urchins, and brittle stars. They attached themselves to the sea floor and had feathery, tentacle-like appendages which they used to capture particles of food. First appearing in the Ordovician period, 488 million years ago, they still survive to this day in deep water.
DETAILS
SPECIES
Halysiocrinus tunicatus
LOCATION
Montgomery County, Indiana
FORMATION
Ramp Creek Limestone
SIZE
Crinoid 2.6" long
CATEGORY
SUB CATEGORY
ITEM
#27555
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