Bivalvia - Wikipedia
WebBivalvia (/ b aɪ ˈ v æ l v i ə /), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts.
Bivalve | Definition, Characteristics, Species, Classification, & Facts ...
WebMar 18, 2024 · bivalve, (class Bivalvia), any of more than 15,000 species of clams, oysters, mussels, scallops, and other members of the phylum Mollusca characterized by a shell that is divided from front to back into left and right valves. The valves are connected to one another at a hinge.
Class Bivalvia - Digital Atlas of Ancient Life
WebSnapshot: Bivalvia. Phylum Mollusca, Class Bivalvia. Common names of representatives: clams, scallops, oysters, mussels. Habitat (s): marine (salt water), freshwater (lakes, rivers, and streams). Feeding type (s): mostly suspension feeders; some deposit feeders and carnivores. Geological range: Cambrian to today.
Characteristics of bivalves | Britannica
Webbivalve, Any member of the mollusk class Bivalvia, or Pelecypoda, characterized by having a two-halved (valved) shell. Clams, cockles, mussels, oysters, scallops, and shipworms are bivalves. Most are completely enclosed by the shell, the two valves of which are joined by an elastic ligament, and by two sheets of tissue called the mantle.
Evolutionary History of Bivalves - Digital Atlas of Ancient Life
WebClass Bivalvia: Introduction and Morphology. – 1. Bivalve Phylogeny and Classification. – 2. Bivalve Ecology and Paleoecology. – 3. Evolutionary History of Bivalves ←. – 4. References and Further Reading. Image above: A fossil scallop (Pectinidae) from the Eocene Ocala Limestone of Florida.
ADW: Bivalvia: INFORMATION
WebJan 26, 2001 · ADW: Bivalvia: INFORMATION. Bivalvia. Also known as pelecypods, the approximately 15,000 species of this taxon are found in marine and freshwater habitats throughout the world. A bivalve is characterized by possessing two shells secreted by a mantle that extends in a sheet on either side of the body.
The Bivalvia - University of California Museum of Paleontology
WebThe Bivalvia. Lophotrochozoa : Mollusca. Scallops, clams, mussels, and more. No. of described species: 10,000. First appearance: Lower Cambrian. Habitats: marine, estuarine, and freshwater. Shapes: mostly two-shelled; some worm-like. Feeding types: mostly suspension feeders; some detritivores.
Class Bivalvia: The Wonders of Bivalves | Earth Life
WebAug 26, 2020 · Introduction to the Bivalvia. Bivalves are a common group of animals. They occur in all aquatic habitats, however by far the majority of species are marine. Bivalves are known by a variety of common names, depending on species, or species group; Clams, Cockles, Fan Shells, Mussels, Oysters, Scallops and Shipworms are all species of …
Bivalvia - Wikiwand
WebBivalvia ( / baɪˈvælviə / ), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts.
What is a bivalve mollusk? - NOAA's National Ocean Service
WebBivalve mollusks (e.g., clams, oysters, mussels, scallops) have an external covering that is a two-part hinged shell that contains a soft-bodied invertebrate. A roughfile clam from the Flower Garden Bank National Marine Sanctuary—just one of many different bivalve mollusk species. Like fish, bivalve mollusks breathe through their gills. As ...
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