goniatite

British

/ ˈɡəʊnɪəˌtaɪt /

noun

any extinct cephalopod mollusc of the genus Goniatites and related genera, similar to ammonites: a common fossil of Devonian and Carboniferous rocks

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Etymology

Origin of goniatite

C19: from Greek gōnia angle, referring to the angular sutures in some species + _-ite ¹

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