Diagnoza

Trigonal conch form reaches in ontogeny the stage with ventrolateral furrow.

Porównanie

The species seems to be confined to the upper part of the clymeniid limestone at Dzikowiec. Also the juvenile whorls attributed by Schindewolf  to his K. trigona (the holotype being an adult conch from Hönnental) seem indistinguishable from corresponding whorls of the holotype of K. trivaricata.

Probable ancestor of this species is K. endogona from Hönnental (co-occurring there in the same beds with the closely similar K. trigona) which differs in a more evolute spiral conch, the trigonal appearance being restricted to early stages.

Autekologia

Występowanie geograficzne

Dzikowiec.

Zasięg czasowy

D. trigonica Zone. 

Materiały muzealne

ZPAL: 2 specimens.

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.