Balvia lens Korn, 1992 from  probably the D. trigonica Zone at Dzikowiec in the Sudetes.

Balvia lens;  conch constriction and outline of the shell.

Diagnoza

Discoidal mature conch with the ventral area bordered by longitudinal depressions.

Porównanie

All the specimens come from a single block collected near the southern end of the quarry; they are thus apparently of different geological age (younger?) than specimens of B. falx found at the northern end of the quarry.

Autekologia

Występowanie geograficzne

Dzikowiec.

Zasięg czasowy

P. jugosus (or D. trigonica) Zone. 

Materiały muzealne

ZPAL: 3 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.