Rodzaj Poloniproductus Biernat et Lazarev, 1988
Gatunek typowy Opis Similar to Devonoproductus, but with suberect spines from slightly elongate bases and weak concentric lamellae on both valves; no ribbing and teeth small; brachial impressions wide on disk. Synonimy Zasięg czasowy Mid Devonian (Late Eifelian to Early Givetian); Poland and Morocco. Literatura |
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