Hypsogastropoda is a clade containing marine gastropods within the clade Caenogastropoda. This clade is considered by the database WoRMS as an alternate representation This clade contains two clades and one informal group: Clade Littorinimorpha Informal group Ptenoglossa Clade Neogastropoda References Ponder W.F. & Lindberg D.R. 1997. Towards a phylogeny of gastropod molluscs: an analysis using morphological characters. Zoological Journal of the Linnean Society, 119: 83-265. External links Murray-Darling Freshwater Research Centre. Hypsogastropoda Taxa named by Winston Ponder