Tuesday, February 16, 2010

Blastoid Microfossil?

I am basing this identification off a picture on the KYANA Geological Society website (http://www.kyanageo.org/Fossils/mississippian/echinodermata/pentremites-conoideus.jpg). It is of a Pentremites conoideus blastoid in the Salem Limestone of Floyd County, Indiana. It is from the Middle Mississippian Period. The two pictures shown here are of a fossil from the Salem Limestone of Washington County, Indiana. 

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