Diagnoza

P₁ element with narrow, convex platform of asymmetric lanceolate outline, extending ventrally to half length of the blade.

Porównanie

Rare elements associated with P₁ elements of the species include biramous P₂ elements, which suggests its origin from T. variabilis. If true, this would then be a relict lineage evolving towards reduction of the platform in P₁ elements.

Autekologia

Występowanie geograficzne

Wietrznia and Jabłonna.

Zasięg czasowy

K. crepida Zone. 

Materiały muzealne

ZPAL: 24 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.