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  2. Elasmobranchii - Wikipedia

    en.wikipedia.org/wiki/Elasmobranchii

    Elasmobranchii is one of the two subclasses of cartilaginous fish in the class Chondrichthyes, the other being Holocephali . Members of the elasmobranchii subclass have no swim bladders, five to seven pairs of gill clefts opening individually to the exterior, rigid dorsal fins, and small placoid scales. The teeth are in several series; the ...

  3. List of cartilaginous fish - Wikipedia

    en.wikipedia.org/wiki/List_of_cartilaginous_fish

    2 Subclass Elasmobranchii. Toggle Subclass Elasmobranchii subsection. 2.1 Superorder Batoidea. 2.1.1 Order Torpediniformes. 2.1.2 Order Rhinopristiformes. 2.1.3 Order ...

  4. Chondrichthyes - Wikipedia

    en.wikipedia.org/wiki/Chondrichthyes

    Elasmobranchii is a subclass that includes the sharks and the rays and skates. Members of the elasmobranchii have no swim bladders, five to seven pairs of gill clefts opening individually to the exterior, rigid dorsal fins, and small placoid scales. The teeth are in several series; the upper jaw is not fused to the cranium, and the lower jaw is ...

  5. Batomorphi - Wikipedia

    en.wikipedia.org/wiki/Batomorphi

    They and their close relatives, the sharks, compose the subclass Elasmobranchii. Rays are the largest group of cartilaginous fishes, with well over 600 species in 26 families. Rays are distinguished by their flattened bodies, enlarged pectoral fins that are fused to the head, and gill slits that are placed on their ventral surfaces.

  6. Shark - Wikipedia

    en.wikipedia.org/wiki/Shark

    The Elasmobranchii also include rays and skates; the Chondrichthyes also include Chimaeras. It was thought that the sharks form a polyphyletic group: some sharks are more closely related to rays than they are to some other sharks, [ 21 ] but current molecular studies support monophyly of both groups of sharks and batoids.

  7. Outline of sharks - Wikipedia

    en.wikipedia.org/wiki/Outline_of_sharks

    Elasmobranch – member of the subclass Elasmobranchii, which includes sharks, rays, and skates. Predator – organism that attacks and feeds on prey (the organism that is attacked). [2] Apex predator – some shark species are apex predators, that is, predators with no predators of their own, residing at the top of their food chain. [3]

  8. Phoebodontiformes - Wikipedia

    en.wikipedia.org/wiki/Phoebodontiformes

    Phoebodontiformes is an extinct group of elasmobranchs (), known from the Devonian and Carboniferous periods.It includes the genera Phoebodus, Diademodus and Thrinacodus. [1] ...

  9. Australian ghostshark - Wikipedia

    en.wikipedia.org/wiki/Australian_ghostshark

    The Australian ghostshark (Callorhinchus milii) is a cartilaginous fish (Chondrichthyes) belonging to the subclass Holocephali ().Sharks, rays and skates are the other members of the cartilaginous fish group and are grouped under the subclass Elasmobranchii.