Rodzina Pericyclidae Hyatt, 1900
Opis Conch subdiscoidal to globular with umbilicus moderate to large; prominent transverse sculpture; narrow ventral lobe. Synonimy Zasięg czasowy Carboniferous; Mississippian Literatura Hyatt, A. 1900. Tetrabranchiate Cephalopoda. In: Zittel-Eastman: Text-book of palaeontology, volume 1, 1st edition: 502-604, figs. 1049-1259, London. |
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