goniatite

goniatite noun

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

Word Origin for goniatite C19: from Greek gōnia angle, referring to the angular sutures in some species + -ite 1 Examples from the Web for goniatite Historical Examples of goniatite

The venerable Orthoceras and the Goniatite linger on through the epoch and into the first period of the succeeding era.

The Elements of Geology

William Harmon Norton