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Burlington Limestone, Mississippian Crinoid/Blastoid Identification??
minnbuckeye posted a topic in Fossil IDI just processed my finds from the Burlington Limestone of southern Iowa. A few finds are still not identified. My hope is that someone can recognize these specimens. First up is a find that I thought was a crinoid calyx when found. But after a good cleaning, I am wondering if it is a blastoid. The next identification needed involves these three specimens that I think are crinoid calyxes. They are markedly larger than the typical crinoid calyxes I find in this formation. If so, what species????