Fragment of center and cross section this center with inner construction elements. Gałęcice, borehole OS 75/257 from depth 124.1-125,2 m.

Diagnoza

Slender shell (diameter of 12 mm at 120 mm length) ornamented with 2 to 3 mm wide grooves, 30 to 35 all around; weakly expressed on the nucleus of the living chamber; the height of the gas chambers of a third of their width; the septal necks short, slightly curved; the siphuncle is straight, somewhat constricted at the septa; deposits in the chambers are horseshoe-shaped; absent on the dorsal side

Porównanie

Autekologia

Występowanie geograficzne

Germany and Poland (Gałęzice, Wałbrzych and Jugów).

Zasięg czasowy

Carboniferous; Visean and Namurian.

Materiały muzealne

Literatura

Schmidt, H. 1956. Orthocone Cephalopoden aus dem deutschen Unterkarbon. Palaeontologische Zeitschrift 38: 41-68.

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