Rodzina Cheiloceratidae
| Opis Conch aperture with obliquely convex profile, lacking auricles; relatively low whorl expansion rate; simple septum with weakly developed lateral vaultings. Synonimy Zasięg czasowy Famennian Literatura | 
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| Opis Conch aperture with obliquely convex profile, lacking auricles; relatively low whorl expansion rate; simple septum with weakly developed lateral vaultings. Synonimy Zasięg czasowy Famennian Literatura | 
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