I believe the correct answer is Gnathostomat fish, with paired upper and lower jaw structures; and Agnath fish, which generally have only a toothy suction cup like upper jaw mouth structure.
Taken from:
http://en.wikipedia.org/wiki/Jaw
The class that jawless fish belong to is the Agatha class. They are in the kingdom of Animalia and the phylum of chordate.
chondrichthyes and osteichthyes are the two classes of gnathostomata where fishes also lies
Agnatha
No, sharks belong to the class Chondroichthyes or cartilaginous fishes, along with rays and chimeras.
They belong to the bony fish category. See the related link.
Chondrichyhyes is the animal class that includes cartilaginous fishes like sharks, rays and chimeras.
Sharks are a type of cartilaginous fish, that is their skeleton is made of cartilage rather than bone. They belong to the vertebrate subphylum of chondrichthyes.
Jawless fish and cartilaginous fish have cartilaginous skeletons, and bony fish have skeletons made from bone. Cartilaginous fish and bony fish both have jaws, paired appendages, and whole vertebrae, and jawless fish lack jaws, paired appendages, and often are without whole vertebrae. Cartilaginous fish can have scales or be naked, jawless fish are naked, and bony fish have scales. Bony fish have swim bladders, and cartilaginous fish do not. Jawless fish, cartilaginous fish, and bony fish all have fins, gills, and dorsal nerve cords that lead to a distinct brain. They all also have postanal tails and notochords.
Sharks belong to cartilaginous fish. (Chondrichthyes)
The common class name for sharks and rays (they both belong to the same class, the Cartilaginous Fish), is Chondrichthyes.
Cartilaginous fish do not have true bones and belong to a the class Chondrichthyes. Sharks, rays and skates are the best-known of this class. True bony fish belong to the class Osteichthyes. One of the major differences is that the members of the class Chondrichthyes lack the ability to pump water past their gill plates, so they must constantly be on the move or in a fast moving current when they are at rest.
No, sharks belong to the class Chondroichthyes or cartilaginous fishes, along with rays and chimeras.
Jawless fish are cartilaginous, but they do not have jaws. Class Chondrichthyes, which contains most cartilaginous fish, like sharks, have powerful jaws.
They are members of cartilaginous class of fish.
Skate are fish, they belong to the shark family of fish, the cartilaginous fish.
They belong to the bony fish category. See the related link.
Cartilaginous fish.
They are members of cartilaginous class of fish.
They are members of cartilaginous class of fish.
Fish belong to the Chordata phylum.