Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 106. Chapters: Pearl, Snail, List of marine gastropod genera in the fossil record, List of gastropods described in the 2000s, Heliciculture, Onycha, Love dart, Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005), Gastropod shell, List of gastropods described in 2010, Land snail, Changes in the taxonomy of gastropods since 2005, Freshwater snail, Taxonomy of the Gastropoda (Ponder & Lindberg, 1997), Radula, Shell money, Veliger, Micromollusk, Digestive system of gastropods, Sensory organs of gastropods, Reproductive system of gastropods, Sea snail, Respiratory system of gastropods, Torsion, Imposex, Snail racing, Whelk, Hepatopancreas, Rhinophore, Dakshinavarti Shankh, Epiphragm, Pasilalinic-sympathetic compass, Limpet, Nervous system of gastropods, Circulatory system of gastropods, Suprapedal gland, Caudal mucous pit, Excretory system of gastropods, Cycloneritimorpha, Columella, Sculpture, Pneumostome, List of gastropods described in 2011, Dodman, Cryptobranch dorid nudibranchs, Cocculinoidea, Neritopsoidea, Spire, Cerata, Tree snail, Apex, Varix, Nidamental gland, Biogeography of gastropods, Neritoidea, Siphonal notch, Diverticula, Odontophore, Plait, Parietal callus, Apophallation, Siphonal canal, Helicinoidea, Stromboid notch, Semper's organ, Hancock's organ. Excerpt: This list of marine gastropod genera in the fossil record is an attempt to list all the genera of sea snails or marine gastropod mollusks which have been found in the fossil record. Nearly all of these are genera of shelled forms, since it is relatively rare for gastropods without a shell (sea slugs) to leave any recognizable traces. It is also worth pointing out that this list of genera represents only a very tiny fraction of the number of genera that must actually have existed over the evolutionary time span: the fossil record is an extremely patchy and exceedi...