Patellogastropods typically occur on intertidal rock substrates. In near-shore subtidal habitats, they are commonly associated with calcareous substrates. Numerous species utilize, as adults, specific types of host plants as substrates, including the Laminariales and Fucales of the Phaeophyta (brown algae), the Cryptonemiales (corallines) of the Rhodo-phyta (red algae), and marine grasses (Zosteraceae, An-giospermae). The biogeographic distribution of recent marine plant limpets is cosmopolitan; they occur in all major oceans, except the Arctic Ocean. In the deep sea, patellogastropods are found at both cold seep and hydrothermal vent sites.
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