Diagnoza

Gently arched profile of P₁ elements at denticle tips, robust S elements with straight, rather short processes; high arched long processes of M element.

Porównanie

An almost complete set of elements of the species is offered by sample J-68 from Jabłonna. At first glance they are similar to non-platform elements of Polygnathus but no single specimen of this genus is represented in the sample. Much more numerous but high-diversity samples from Kadzielnia allow distinguishing probable P₁ and P₂ elements. The apparatus somewhat resembles that of the francodinids and generally short processes give it a paedomorphic appearance. The species cannot be ancestral to the first francodinid, Vogelgnathus, because of the large size of elements, their straight processes, and too young geological age. Among S₁ elements with short straight processes at Kadzielnia there are specimens with an additional process developing at the element bend. This is another francodinid feature and it cannot be excluded that P.? vogelgnathoides is a case of evolutionary reversal within the francodinids.

Autekologia

Występowanie geograficzne

Jabłonna and Kadzielnia.

Zasięg czasowy

K. crepida Zone. 

Materiały muzealne

ZPAL: 350 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.