Fossil Echinoderm Mass Mortality Plate

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Description

FOSSIL ECHINODERM MASS MORTALITY PLATE Ascocystites sp. Ordovician, 485.4-to 443.8-million-years-old Kaid Errami, Morocco Eocrinoids are one of the earliest-known groups of echinoderms. The extreme high definition of the specimens is outstanding. The bright blue-yellow-orange coloration due the oxidization of cobalt and iron pyrite is very beautiful and showy, set off...

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