Nautilida, the other two being the Lirocerina and Nautilina. Genera in the Rutocerina are redistributed (Kümmel 1964) in the Rutoceratina, Tainoceratina, and...
3 KB (289 words) - 19:33, 18 July 2023
the same sort of shells and internal structure as found in the Devonian Rutocerina of Shimanskiy, the earliest true nautilids. Flower (1950) suggested the...
10 KB (1,127 words) - 17:26, 3 December 2023