Rodzina Cravenoceratidae
Opis External lobe narrow to moderately narrow, flanks diverging only slightly; shell thick disk-shaped up to spherical. Synonimy Zasięg czasowy Carboniferous; Late Visean to Early Namurian Literatura Ruzhencev, V.E. 1957. Verkhnekamennougolnye ammonoidei v Sredney Asii. Doklady Akademii Nauk SSSR 114 (4): 889-892. |
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