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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. Batomorphi - Wikipedia

    en.wikipedia.org/wiki/Batomorphi

    Batomorphi is a clade of cartilaginous fishes, commonly known as rays, this taxon is also known as the superorder Batoidea, but the 5th edition of Fishes of the World classifies it as the division Batomorphi. [2]

  4. Category:Elasmobranchii - Wikipedia

    en.wikipedia.org/wiki/Category:Elasmobranchii

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  5. Atlantic stingray - Wikipedia

    en.wikipedia.org/wiki/Atlantic_stingray

    The stingrays in the St. Johns River system represent the only permanent freshwater elasmobranch population in North America. [3] [9] [10] This species inhabits shallow coastal waters over sandy or silty bottoms, estuaries, and lakes. They prefer water temperatures over 15 °C (59 °F) and can tolerate temperatures over 30 °C (86 °F).

  6. Clearnose skate - Wikipedia

    en.wikipedia.org/wiki/Clearnose_skate

    The clearnose skate (Rostroraja eglanteria) is a species of cartilaginous fish in the family Rajidae. R. eglanteria is also known by other common names such as the brier skate and summer skate. [3]

  7. Xenacanthida - Wikipedia

    en.wikipedia.org/wiki/Xenacanthida

    Xenacanthida (or Xenacanthiformes) is an order or superorder of extinct shark-like chondrichthyans (cartilaginous fish) known from the Carboniferous to Triassic.They were native to freshwater, marginal marine and shallow marine habitats. [1]

  8. Your Cholesterol Could Be A Key Indicator Of Dementia. A ...

    www.aol.com/cholesterol-could-key-indicator...

    Typically, dementia is associated with classic symptoms like confusion and memory loss. But new research finds that there could be a less obvious risk factor out there: your cholesterol levels ...

  9. Ostracoderm - Wikipedia

    en.wikipedia.org/wiki/Ostracoderm

    Many had hypocercal tails in order to generate lift to increase ease of movement through the water for their armoured bodies, which were covered in dermal bone. They also had sucking mouth parts and some species may have lived in fresh water. The taxon contains the subgroups Heterostraci, Astraspida, Arandaspida. † Thelodonti (extinct)