Kingdom Animalia Class Cephalopoda Rank Genus | Subclass Nautiloidea Superfamily Clydonautilaceae | |
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Bistrialites is an involute, globose Clydonautilacean belonging to the Liroceratidae with a reniform whorl section, large funnel shaped umbilcus, smooth surface except for spiral ornament in the region of the umbilical shoulder. Bistrialites comes from the Lower Carboniferous (Mississippian) of Europe.
References
Bistrialites Wikipedia(Text) CC BY-SA