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Helicacanthus
Taxonomy
Helicacanthus is a genus. It is not extant.
It was synonymized subjectively with Nododelphinula by Kase (1984).
It was assigned to Nododelphinulidae by Kollmann (2001); and to Archaeogastropoda by Sepkoski (2002).
It was synonymized subjectively with Nododelphinula by Kase (1984).
It was assigned to Nododelphinulidae by Kollmann (2001); and to Archaeogastropoda by Sepkoski (2002).
Species
Species lacking formal opinion data