Mollusc

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Molluscs
Fossil range: Ediacaran or Cambrian - Recent
Caribbean Reef Squid, Sepioteuthis sepioidea
Caribbean Reef Squid, Sepioteuthis sepioidea
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Linnaeus, 1758
Classes
Caudofoveata
Aplacophora
Polyplacophora
Monoplacophora
Bivalvia
Scaphopoda
Gastropoda
Cephalopoda
† Rostroconchia
† Helcionelloida
† ?Bellerophontidae

Molluscs or mollusks are invertebrate animals. Most of them live underwater (most of them in or near the ocean).