Knowra Teleostei Teleostei Teleostei is an infraclass of ray-finned fishes containing most living fish species. Its members share a distinctive jaw apparatus and a largely ossified skeleton, alongside enormous variation in body form and habitat.
Actinopterygii : Actinopterygii is the class of ray-finned fishes, whose fins are supported by bony rays. Teleostei is nested within this much broader lineage of ray-finned fishes.
Premaxilla : The premaxilla is a paired bone at the front of the upper jaw in most bony vertebrates. Its protrusion and mobility help many teleosts expand the mouth to capture prey.
Palaeonisciformes : Palaeonisciformes is a traditional grouping of early ray-finned fishes, many with robust scales and heterocercal tails. These older ray-finned forms provide a contrast with the derived anatomy of teleosts.
Aquaculture : Aquaculture is the farming of aquatic organisms, including fish, shellfish, and aquatic plants. Farmed teleosts such as salmon and tilapia supply a large share of global fish production.
Chondrichthyes : Chondrichthyes is the vertebrate class of cartilaginous fishes, including sharks, rays, and chimaeras. Cartilaginous fishes contrast with teleosts in skeletal composition and many aspects of anatomy.
Neopterygii : Neopterygii is a major ray-finned fish group that includes teleosts and their closest living non-teleost relatives. This group places teleosts alongside gars and bowfins in the ray-finned fish family tree.
Operculum : The operculum is a bony plate covering and protecting the gills of many fishes. Teleosts use opercular movement to draw water across the gills while breathing.
Pholidophorus : Pholidophorus is an extinct genus of Mesozoic fishes often discussed among early teleosts. Its fossils help trace early teleost anatomy, though its exact placement has been debated.
Fisheries science : Fisheries science studies the biology, management, and conservation of harvested aquatic populations. Most commercial finfish fisheries target teleost species and depend on their population dynamics.
Holostei : Holostei is a group of ray-finned fishes comprising gars and bowfins, the closest living relatives of teleosts outside Teleostei. Gars and bowfins retain traits that help distinguish non-teleost neopterygians from teleosts.
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