Classification of the genus Discina
G. †Discina Lamarck
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Discina atlantica King 1868
†Discina bosniaca Kittl 1903
†Discina capuliforma McChesney 1859
†Discina connata Walcott 1884
†Discina discoides Schlotheim 1820
†Discina donetzensis Yakovlev 1912
†Discina lodensis Hall 1843
†Discina mamillata Guembel 1861
†Discina minuta Hall 1843
†Discina newberryi Hall 1863
†Discina nitida Phillips 1836
†Discina orbicularis Moore 1861
†Discina spitzbergensis Lundgren 1887
Discina striata Schumacher 1817