†Helicosphaera seminulum seminulum Bramlette and Sullivan 1961 (haptophyte alga)
Belongs to Helicosphaera seminulum according to Bramlette and Sullivan 1961
Sister taxa: Helicosphaera seminulum lophota, Helicosphaera seminulum recta
Ecology: passively mobile planktonic "photoautotroph"
Distribution: there are no occurrences of Helicosphaera seminulum seminulum in the database