Keywords

#helicoplacus

Helicoplacus

Extinct genus of marine invertebrates

Helicoplacus is the earliest well-studied fossil echinoderm. Fossil plates are known from several regions. Complete specimens were found in Lower Cambrian strata of the White Mountains of California.

Wed 4th

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Helicoplacus Helicoplacoidea Deuterostome Cincta List of echinoderm orders Yorkicystis List of the Paleozoic life of California List of the prehistoric life of California List of prehistoric echinoderm genera
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