Diagnoza

The shell with a very narrow umbilicus and a rapid increase in whorl height; the growth lines form two arches, with an inner arch higher and wider than the outer one.

Porównanie

Larger specimens are similar to those of Dimorphoceras discrepans Brown  but have different suture lines; suture lines of juvenile specimens are similar to Dimorphoceras (Paradimorphoceras) marioni Moore, 1939 and Dimorphoceras (Paradimorphoceras) plicatilis Moore, 1939. Three-dimensionally preserved specimens from the Lechówek Beds show sutures and growth lines with deep lateral sinuses.

Autekologia

Występowanie geograficzne

Czechia (East Sudetes: Bobrownik, Budišovice, Kyjovice, Jestřabí, Nové Sedlice, Mokré Lazce, Opatovice) and Poland (Gałęzicie, boreholes Lamki 1, Krasnystaw, Gołonóg, Marszowice 1, Pławniowice)

Zasięg czasowy

Carboniferous; Serpukhovian

Materiały muzealne

Over 45 specimens from the Czech Republic and 17 from Poland.

Literatura

Knopp, L. 1931. Ueber die unterkarbonischer Goniatiten der Ost-sudeten. Lotos Prag, 79, 8-33. Praha.

Żakowa, H. 1971. Poziom Goniatites granosus w synklinie galęzickiej (Góry Świętokrzyskie). Prace lnstytutu Geologicznego 60: 1-137.