Pterioida
Encyclopedia
Pterioida is an order
Order (biology)
In scientific classification used in biology, the order is# a taxonomic rank used in the classification of organisms. Other well-known ranks are life, domain, kingdom, phylum, class, family, genus, and species, with order fitting in between class and family...

 of large and medium-sized saltwater clams, marine
Marine (ocean)
Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...

 bivalve mollusks. It includes five families, among them the Pteriidae
Pteriidae
Pteriidae is a family of medium-sized to large saltwater clams. They are pearl oysters, marine bivalve mollusks in the order Pterioida.Some of the species in this family are important economically as the source of saltwater pearls....

 (pearl oysters and winged oysters)

Families within the order Pterioida

  • Isognomonidae
    Isognomonidae
    Isognomonidae is a family of marine bivalve mollusks. They are related to the pearl oysters.Some of the species in the family are known as tree oysters because they are edible and grow on mangrove roots.-Taxonomy:* Crenatula...

  • Malleidae
    Malleidae
    Malleidae, or the hammer oysters, is a family of saltwater clams. They are related to the pearl oysters, in the order Pterioida.The shells of most of them are T-shaped, with the hinge at the top of the T, and with the byssus emrging from the hinge. An oblique ligament holds the hinge. The shell is...

  • Pinnidae
    Pinnidae
    Pinnidae is a family of large saltwater clams sometimes known as pen shells. They are marine bivalve molluscs in the order Pterioida.The shells are fragile and have a long and triangular shape, and in life they are anchored in sediment using a byssus...

  • Pteriidae
    Pteriidae
    Pteriidae is a family of medium-sized to large saltwater clams. They are pearl oysters, marine bivalve mollusks in the order Pterioida.Some of the species in this family are important economically as the source of saltwater pearls....

  • Pulvinitidae
    Pulvinitidae
    Pulvinitidae is a family of bivalves related to the scallops and oysters.-Genera:* Pulvinites de France 1824** Pulvinites adansoni de France 1824** Pulvinites antarctica** Pulvinites argenteus** Pulvinites dysporista...

  • Ramonalinidae
    Ramonalinidae
    Ramonalinidae is an extinct family of marine bivalve mollusks from the late Anisian . It was an edgewise-recliner with a flattened anteroventral surface and partially fused valves. They formed distinctive mud mounds ....

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