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Cycladestheria Defretin-Lefranc 1970
urn:lsid:organismnames.com:name:2290517
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Cycladestheria Defretin-Lefranc 1970
Defretin-Lefranc 1970. Revision des conchostraces westphaliensdu bassin houiller du Nord-Pas-de-Calais. Annls Soc. geol. Nord, 90 1970: 121-136