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  • Chondrichthyes - Wikipedia
    Chondrichthyes are aquatic vertebrates with paired fins, paired nares, placoid scales, conus arteriosus in the heart, and a lack of opercula and swim bladders Within the infraphylum Gnathostomata, cartilaginous fishes are distinct from all other jawed vertebrates
  • Chondrichthyan | Definition, Species, Facts | Britannica
    chondrichthyan, (class Chondrichthyes), any member of the diverse group of cartilaginous fishes that includes the sharks, skates, rays, and chimaeras The class is one of the two great groups of living fishes, the other being the osteichthians, or bony fishes
  • Chondrichthyes – Characteristics, Classification Examples
    Chondrichthyes, derived from the Greek words “chondr” meaning cartilage and “ichthys” meaning fish, refers to a class of jawed fishes characterized by their cartilaginous skeletons
  • Chondrichthyes - New World Encyclopedia
    The Chondrichthyes or cartilaginous fishes are a major class of jawed fish that includes the sharks, rays, and skates, and whose skeleton is characterized by rubbery cartilage, which is very light and flexible, rather than bone, as in the bony fishes (class Osteichthyes (such as cod or salmon))
  • Introduction to the Chondrichthyes
    Sharks, skates, rays, and even stranger fish make up the Chondrichthyes, or "cartilaginous fish " First appearing on Earth almost 450 million years ago, cartilaginous fish today include both fearsome predators and harmless mollusc-eaters (harmless, that is, unless you are a mollusc) A number of shark and ray species are fished, commercially or for sport Members of the Chondrichthyes all lack
  • Chondrichthyes - Rays, Sharks, Skates, Chimaeras
    There are around 1,000 species in this class of fish The species in this class have a flexible skeleton made of cartilage instead of bone Cartilage is the flexible substance found that gives human noses and ears their shape! Only their teeth, and sometimes their vertebrae, have calcium in them!
  • How many species of Chondrichthyes are there? - The Institute for . . .
    How Many Species of Chondrichthyes are There? Unveiling the Diversity of Cartilaginous Fishes Currently, scientists recognize approximately 1,250 species of Chondrichthyes, encompassing sharks, rays, skates, and chimaeras This number is constantly being refined as new species are discovered and existing classifications are reassessed through ongoing research A Deep Dive into the World of
  • Chondrichthyes Classification - BYJUS
    Chondrichthyes is a class of jawed fishes having a cartilaginous skeleton The class includes a diverse group of fishes including sharks, rays, skates and chimaeras They are mostly marine fishes The other group of fishes are bony fishes, which are included in the class Osteichthyes
  • Chondrichthyes: Characteristics, Types and Reproduction of . . .
    Chondrichthyes include sharks, rays, and chimaeras, with cartilage skeletons They are fish without a swim bladder, using their liver for buoyancy Its reproduction includes internal fertilization and various reproductive strategies, such as ovoviviparity
  • Chondrichthyan - Cartilaginous Fish, Elasmobranchs, Holocephali . . .
    The first fishes clearly identified with the Chondrichthyes were sharklike in form One order, the Pleurocanthodii, made up of one family of freshwater sharklike fishes, appeared in the Late Devonian (about 380 million years ago)





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