• 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
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    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