goniatite

goniatite

(ˈɡəʊnɪəˌtaɪt)

n

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

[C19: from Greek gōnia angle, referring to the angular sutures in some species + -ite¹]

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