Diagnoza

Porównanie

The conch surface ornamentation with crenulated growth lines and a suture with pointed ventrolateral saddles and V-shaped lobes are features of the whole (sub)genus. According to Korn (1988, 199), the slightly older and possibly ancestral G. hudsoni Bisat, 1934 differs in having wider juvenile conchs, ane oblique aperturę with almost no separate ventral sinus at subadult stage. Adult G. crenistria may reach 70 mm in diameter, at the last stage developing a little wider umbilicus. 

Autekologia

Występowanie geograficzne

fore-Sudetic Monocline; Holy Cross Mts., and the Lublin Coal Basin

Zasięg czasowy

Visean

Materiały muzealne

Literatura

Korejwo & Teller 1967

Czarniecki 1973

Korejwo 1986

Żakowa 1974, 1992