†Nannoconus steinmannii steinmannii Kamptner 1931 (haptophyte alga)
Coccolithophyceae - Prymnesiophycidae - Prymnesiophycidae
Belongs to Nannoconus steinmannii according to P. R. Bown 1998
Sister taxon: Nannoconus steinmannii minor
Ecology: passively mobile planktonic "photoautotroph"
Distribution: there are no occurrences of Nannoconus steinmannii steinmannii in the database