Podrząd Orthoceratina Kuhn, 1940
Opis Straight to weakly curved shell with narrow, subcentral to marginal siphuncle, small embryonic conch, thin connecting rings (except for the Baltoceratidae). Synonimy Zasięg czasowy Literatura Dzik, J. 1984a. Phylogeny of the Nautiloidea. Palaeontologia Polonica 45, 1-255 |
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