from The Century Dictionary.

  • noun A fossil cophalopod of the family Goniatitidæ.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Paleon.) One of an extinct genus of fossil cephalopods, allied to the Ammonites. The earliest forms are found in the Devonian formation, the latest, in the Triassic.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Any member of the extinct Goniatitida, a taxonomic order of ammonites.


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