Vörös A. szerk.: Fragmenta Mineralogica Et Palaentologica 15. 1992. (Budapest, 1992)

cies level. In my opinion, the small differences in the external characters do not justify the separation from C. plicatissima. The Hettangian age does not warrant the separation either, as C. plicatissima first appears in the Late Hettangian (Aimeras 1964). Text-fig. 5 - Transverse serial sections of Calcirhynchia ? plicatissima Distribution: According to Aimeras (1964), C. plicatissima is Late Hettangian to Sinemurian in age. Vörös (1982) found it ranging up to the Davoei Zone of the Early Pliensbachian in the Bakony Mountains. The species was reported from