This chapter investigates the evolution and phylogeny of the gastropod clade of Vetigastropoda. It explains that Vetigastropoda, introduced in 1980, is a clade of basal marine snails that include abalone, keyhole limpets, and slit shells. It provides a summary of the major groups within Vetigastropoda including their key characters and morphological features. It highlights the importance of a multilevel approach consisting of museum studies combining new field collecting and live observations to improve understanding of the Vetigastropoda phylogeny.
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