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SHOW THEMES FOR 2011

Bizarre & Beautiful Minerals and Fossils
FEATURE SHOWCASE


Some WEIRD
ECHINODERMS
of the CINCINNATIAN

Compiled by Colin D. Sumrall
Presented by the Dry Dredgers

Picture Gallery


Cyclocystoids

Cyclocystoids are VERY rarely found articulated and/or whole. Here is an example of the Cyclocystoid called Apycnodiscus decussatum. This one was found by Kay Bonar on a Dry Dredgers field trip.
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Cyclocystoid Plates


Above are five photos taken from different angles of the same Cyclocystoid plate. This specimen has a type of preservation that is unique to the "Cyclora Fossil Hash" layers of the Arnheim Formation.


Lepadocystis moorei


Photo courtesy of Jack Kallmeyer

The above cystoid is an excellently preserved Glyptocystitid Rhombiferan specimen. As you can see, the hand drawing at the top of this page is not an exaggeration. This really is a strange looking creature. What appears to be eyes are actually pore rhoms.  


Cheirocystis fultonensis


Showing front and back sides. Photos Courtesy of Bill Heimbrock

This is a nearly complete specimen of the Rhombiferan Cheirocystis fultonensis was found that the base of the Kope Formation Fulton Beds (left and right sides shown above). It is missing the stem. The specimen has not been prepared and so is covered with matrix. As of this writing, less than a dozen complete specimens of this species have been found and so each specimen is of scientific importance. This one was found by Bill Heimbrock. Note the ambulacra exposed at the top of the specimen.

Come to Geofair 2011 on Sunday, May 8, 2011 and see Dr. Colin Sumrall from the University of Tennessee give an illustrated presentation on  "Beautiful & Bizarre Cincinnati Echinoderms". The talk begins at 1 pm on the second floor.

For more information on Echinoderm fossils, See the Dry Dredgers Website.

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Home || Show Themes || Exhibit Categories || Illustrated Lectures || Dealers || Activities || Directions to the Show || Admission || Picture Gallery || Links || Contact Us || Press Releases

GeoFair reserves the rights to all information, images, and content presented here. Permission to reproduce in any fashion, must be requested in writing to webmaster@geofair.com .