Gastropoda: Systematics

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There is still controversy about the phologenetic position of some gastropod clades. Though the clades shown are well supported in many modern analyses, their relationships to each other remain somewhat unclear.

In particular, the Neritopsina are placed below the Vetigastropoda in some analyses (thus they become the sister group of Vetigastropoda+Caenogastropoda+Heterobranchia). Also, the enigmatic taxon Cocculinidae is still uncertain. It may actually be a member of the Neritopsina clade, as some characters indicate. Most likely it is the sister clade to Neritopsina, though.


Visit the Gastropoda pages on the Tree of Life for more on gastropod systematics.