Keywords: KopeCobbleOrdovicianKY.jpg en Encrusted hiatus concretion from the Kope Formation Upper Ordovician of Covington Kentucky Encrusters include bryozoans and crinoids own Wilson44691 2010-10-20 Photograph taken by Mark A Wilson Department of Geology The College of Wooster http //www3 wooster edu/geology/MWilson html Ordovician geology Bryozoa Unidentified Crinoidea fossils Concretion |