Kingdom Animalia Class Cephalopoda Order Nautilida Rank Genus | Phylum Mollusca 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.
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Bistrialites Wikipedia(Text) CC BY-SA