solidiform

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• Rayonnoceras — Taxobox name = Rayonnoceras fossil range = Late Silurian Carboniferous regnum = Animalia phylum = Mollusca classis = Cephalopoda subclassis = Nautiloidea ordo = Actinoceratida familia = Carbactinoceratidae genus = Rayonnoceras genus authority =… …   Wikipedia