Two Fossil Crinoids (Lanecrinus And Halysiocrinus) - Indiana

 
This fossil plate contains two fossil crinoids (Lanecrinus depressus and Halysiocrinus bradleyi) from the Edwardsville Formation of Crawforsville, Indiana. The longest crinoid (Halysiocrinus bradleyi) is 1.5" long and shows the calyx (body) and brachia (feeding arms). The smaller specimen also shows the calyx and brachia.

Comes with an acrylic 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.
DETAILS
SPECIES
Lanecrinus depressus & Halysiocrinus bradleyi
LOCATION
Crawfordsville, Indiana
FORMATION
Edwardsville Formation
SIZE
1.5" longest crinoid, 3.4 x 2.1" limestone
CATEGORY
SUB CATEGORY
ITEM
#132801
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