Bistrialites

Bistrialites
Temporal range: Lower Carboniferous (Mississippian)
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Nautiloidea
Order: Nautilida
Family: †Liroceratidae
Genus: †Bistrialites
Turner, 1954

Bistrialites is an involute, globose Clydonautilacean belonging to the Liroceratidae with a reniform (kidney-shaped) whorl section, large funnel-shaped umbilicus, smooth surface except for spiral ornament in the region of the umbilical shoulder. Bistrialites comes from the Lower Carboniferous (Mississippian) of Europe.

References

  • Bernhard Kummel, 1964. Nautiloidea – Nautilida; Treatise on Invertebrate Paleontology, Part K. Geological Society of America and University of Kansas press, R.C. Moore (ed.) -- Liroceratidae K444 -K447.


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