Diagnoza

Porównanie

Extremely large protoconch type is virtually indistinguishable in size and shape from that attributed to a prodromitid from the Exshaw Shale of Alberta by Schindewolf (1959) and House (1992). Only two larval septa are represented in the Dzikowiec specimen, so it is unclear whether the prodromitid subdivision of the ventral lobe was developed there. Probably not yet, as the age of the Dzikowiec sample is significantly older than the Exshaw Shale ammonoids, but phylogenetic affinity to the prodromitids seems clear. At least two possible European relatives are known: Voeringerites peracutus (Vöhringer, 1960) from Oberrödinghausen, much older than the Dzikowiec species, and Karagandoceras? sp. n. I of Bartsch & Weyer (1988) from the S. sandbergi Zone of Thuringia, which is more or less coeval or a little older.

Autekologia

Występowanie geograficzne

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.