Neoloricata

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Neoloricata (class Amphineura, subclass Polyplacophora) An order of polyplacophorans, some of which have the articulamentum present as insertion plates. Advanced forms possess a mesostracum layer to the valves. They first appeared in the Carboniferous. The suborder Acanthochitonina includes the largest of all polyplacophorans, although some of its members are small.

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