Falcodus  sp. from the Tournaisian Wapnica beds of Dzikowiec in the Sudetes.

Diagnoza

Porównanie

Elements of the symmetry fransition series have strongly recurved ventral branches and short dorsal ones. Quite numerous and very variable P₂  elements with strongly recurved ventral branches are associated with them. Some M element with wide processes and long denticles may belong to the species. No platform-bearing element P₁ can be correlated with this set of ramiforms on the basis of its distribution in the section. Among associated 'spathognathoduses' the only one that shows distribution along the sections and morphology consistent with that of the discussed ramiforms, is that with a gently arched blade.

The restored apparatus organisation resembles Cudotaxis priceslingi Chauff, 1981 from the late Toumaisian and earliest Visean. In the Muhua section, above the range of occurrence of this species, another related form occurs that bears some similarity to later species of Synprioniodina. Perhaps all these genera belong to a single evolutionary branch.

Autekologia

Występowanie geograficzne

Dzikowiec, the Sudetes

Zasięg czasowy

Tournaisian

Materiały muzealne

ZPAL

Literatura

Dzik, J. 1997. Emergence and succession of Carboniferous conodont and ammonoid communities in the Polish part of the Variscan sea. Acta Palaeontologica Polonica 42, 57-170.