SPIROPLECTINA Schubert, 1902

 

 

Type species: Spiroplecta (Proroporus) jaekeli Franke, 1925 (*1172), p. 12; SD Botvinnik, 1971 (*312), p. 44.

Spiroplectina Schubert, 1902 (*2812), p. 84 (non Spiroplectina Cushman, 1927).

Pseudospiroplectinata Gorbenko, 1957 (*1275), p. 879; type species: Pseudospiroplectinata plana Gorbenko, 1957; OD.

Test elongate, early stage triangular in section with chambers triserially arranged, later broad and flattened with broad, low, and biserially arranged chambers, adult uniserial with arched or equitant chambers, sutures straight in the early portion, thickened and limbate, those of the uniserial part arched centrally; wall finely agglutinated; aperture terminal, rounded, on a short neck. U. Cretaceous (U. Cenomanian to U. Turonian); Ger­many; USSR: Ukraine, Donets Basin.