Mississippian Fossils of Missouri
St. Louis Formation
Phylum Echinodermata (sea urchins - crinoids)
Class Echinoidea (sea urchin)
Melonechinus multiporus
Class Crinoidea (crinoid)
Holcocrinus sp.
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Mississippian Fossils
of Missouri
Salem
Formation
Warsaw
Formation
Paleontology
and Geology of Missouri
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