MolluscaBase source details
Calvin, S. (1890). Some new species of Palaeozoic fossils. Bulletin from the Laboratories of Natural History of the State University of Iowa. 1: 173-181.
436955
Calvin, S.
1890
Some new species of Palaeozoic fossils
Bulletin from the Laboratories of Natural History of the State University of Iowa
1: 173-181
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Schizodus symmetricus Calvin, 1890 † accepted as Schizodus alpinus (J. Hall, 1858) † (original description)
