Chondrichthyes
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Chondrichthyes is a class of jawed fish that contains the cartilaginous fish or chondrichthyans, which all have skeletons primarily composed of cartilage. They can be contrasted with the Osteichthyes
Chondrichthyes
Myliobatis aquila sasrája
Heterodontus zebra
Squatina angelus Gervais
Shark
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Sharks are a group of elasmobranch cartilaginous fishes characterized by a ribless endoskeleton, dermal denticles, five to seven gill slits on each side, and pectoral fins that are not fused to the he
Chondrichthyes
…infraphylum Gnathostomata, cartilaginous fishes are distinct from all other jawed vertebrates. The class is divided into two subclasses: Elasmobranchii (sharks, rays, skates and sawfish) which lack opercula, and Holocephali (chimaeras, sometimes called ghost sharks, which are sometimes separated into their own…
Corl 0207
Fossil shark tooth (size over 9 cm or 3.5 inches) with crown, shoulder, root and root lobe
A collection of Cretaceous shark teeth
The teeth of tiger sharks are oblique and serrated to saw through flesh