Definition of goniatite in US English:

goniatite

noun

  • An ammonoid fossil of an early type found chiefly in the Devonian and Carboniferous periods, typically with simple angular suture lines.

    Typified by the genus Goniatites, order Goniatitida

    Compare with ammonite and ceratite
    • ‘Carboniferous goniatites as a group appear to be relatively cosmopolitan.’
    • ‘Early ammonoids or goniatites may have simple zig-zag sutures, but they become increasingly complex from the Triassic to the Cretaceous.’
    • ‘Good material showing sutures and growth line ornament are required for detailed determination of goniatites.’
    • ‘The richly fossiliferous Namurian bed is packed with both brachiopods and goniatites.’
    • ‘The taxonomically diverse goniatites dominated the Carboniferous-Permian ammonoid fauna.’

Origin

Mid 19th century: from modern Latin Goniatites, from Greek gōnia ‘angle’.

Pronunciation

goniatite

/ˈɡōnēəˌtīt/