Diagnoza

Platform in P₁ element with prominent, narrow posterior lobe, in juvenile specimens oriented somewhat ventrally; angularly bent biramous P₂ element.

Porównanie

Specimens of juvenile morphology typical of this species co-occur with late populations of T. minutus and there seems to be no transition between them. This is apparently a successor of T. variabilis that became separated from the main lineage represented by T. minutus as a result of an allopatric speciation process and subsequent merging of their populations.

Autekologia

Występowanie geograficzne

Kadzielnia, Jabłonna, Wietrznia, and Miedzianka.

Zasięg czasowy

K. crepida Zone. 

Materiały muzealne

ZPAL: 653 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.