"Nautilus" clarkanus is an extinct species of nautiloid. It lived during the Lower Carboniferous. Fossil specimens have been uncovered in the Spergen Hill Limestone formation of Indiana.

"Nautilus" clarkanus
Temporal range: Carboniferous
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Nautiloidea
Order: Nautilida
Family: Nautilidae
Genus: Nautilus
Species:
N. clarkanus
Binomial name
Nautilus clarkanus
Hall, 1858

References

edit