Rank Species | Scientific name Nautilus clarkanus | |
Similar Nautilus cookanum, Nautilus stenomphalus, Allonautilus perforatus, Nautilus macromphalus, Allonautilus | ||
"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.
References
Nautilus clarkanus Wikipedia(Text) CC BY-SA