Rodzaj Emarginula Lamarck, 1801
Gatunek typowy Opis The limpet-like shell has a slit on its anterior side, which inserts on the apex and is continuous to the shell margin; protoconch is succeeded by a more or less extended and more or less dextrally twisted limpet-like shell without slit; there is no septum in the shell interior and the posterior slit is closed to form a selenizone. Synonimy Zasięg czasowy Late Triassic to Recent Literatura Lamarck, J. B. 1801. Système des animaux sans vertèbres, ou tableau général des classes, des ordres et des genres de ces animaux. Published by the author and Deterville, Paris: 432 pp. |
|