Brachiopod
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Brachiopods, phylum Brachiopoda, are a phylum of animals that have hard "valves" on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinge
Lingulaanatina AA
Terebratalia transversa 141510036
Paired lophophores of Terebratalia transversa, a modern brachiopod in the order Terebratulida
An unidentified brachiopod feeding off the coast of Ushant, France.
Mollusca
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Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks. 86,600 extant species of molluscs are recognized, making it the second-largest animal phylum
Cornu aspersum (formerly Helix aspersa)—a common land snail
Shell of Marisa cornuarietis, a freshwater snail
Fossilized ammonite displayed at the National Museum of the Philippines
Diversity and variability of shells of molluscs on display