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Early Paleozoic Era

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Questions Answers
The Ordovician were... Celtic tribes
Ancient gastropods, relatives of today's snail, were Malcurites
The word "pelecypod" means hatchet-foot
The conical shell of primitive cephalopods contained stony deposits
Ancient crinoids were stalked echinoderms
Bonus question: The Silurian Period is named after an ancient tribe of Celts

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