Opis

Diagnosis. — Suture with flank lobe bordered by narrow saddles; evolute conch with flat venter.

Remarks. — Probable ancestor of the gonioclymeniids is Mesoclymenia nalivkinae Bogoslovsky, 1981 from Kazakhstan, with acute ventral and flank lobes. Subsequent deepening of the umbonal lobe and subdivision of ventrolateral saddle apparently gave the situation known in Gonioclymenia.

Synonimy

Zasięg czasowy

Literatura

Dzik, J. 2006. The Famennian "Golden Age" of conodonts and ammonoids in the Polish part of the Variscan sea. Palaeontologia Polonica 63, 1-359.