Parsley, Ronald L. <br/><br/>
Echinoderms from Middle and Upper Ordovician rocks of Kentucky :  descriptions and illustrations of nine species of Stylophora, Paracrinoidea, Inadunata, Cyclocystoidea, and Rhombifera / 
by R.L. Parsley 
 - Washington, D.C. :  United States Government Printing Office,  1981 
 - iii, 9 p., [1] leaf of plates :  ill. ;  29 cm. 
 - Contributions to the Ordovician paleontology of Kentucky and nearby states Geological Survey professional paper ;  1066-K .
<br/><br/> Prepared in cooperation with the Commonwealth of Kentucky, University of Kentucky, Kentucky Geological Survey 
<br/><br/>Bibliography: p. 8-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Echinodermata, Fossil--Kentucky<br/>Paleontology--Ordovician<br/>Paleontology--Kentucky
<br/><br/><label>Dewey Class. No.: </label>563.909769