6.8" Crawfordsville Crinoid Association - Cyber Monday Special

 
 
 
This is a nice association of four different species of crinoids from the Ramp Creek Limestone. There are two types of Cyathocrinites, a Barycrinus and an Onychocrinus. It was collected from the famous Witherspoon Quarry near Crawfordsville, Indiana and prepared under microscope.

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.
FOR SALE
$395 $335
DETAILS
SPECIES
Cyathocrinites multibrachiatus, Barycrinus rhombiferus, Onychocrinus ulrichi & Cyathocrinites iowensis
LOCATION
Crawfordsville, Indiana
FORMATION
Ramp Creek Limestone
SIZE
Matrix 6.8x4.2"
CATEGORY
SUB CATEGORY
ITEM
#20847
GUARANTEE
We guarantee the authenticity of all of our
specimens. Read more about our
Authenticity Guarantee.