Gatunek typowy

Opis

Ridges parallel to the carina in P1 elements. P2 elements with high regularly denticulated carina and wide conical base. S and M elements minute of generalised morphology.
The Dinodus symmetry transition series set of elements shows no correlation with Siphonodella P1 elements in its stratigraphic distribution and probably are associated with P1 elements of 'Siphonodella' lobata. 

Synonimy

Zasięg czasowy

Tournaisian

Literatura