-
Gnathostomata (/ˌnæθoʊˈstɒmətə/; from
Ancient Gr****: γνάθος (gnathos) 'jaw' + στόμα (stoma) 'mouth') are the
jawed vertebrates.
Gnathostome diversity...
- The
Gnathostomata are a
superorder of sea urchins,
including the
familiar sand dollars.
Gnathostomatans are
irregular in shape, but
unlike other irregular...
- (hagfishes),
Hyperoartia (including lampreys), and the much more
numerous Gnathostomata (jawed vertebrates).
Formerly distinct from
vertebrates by excluding...
- fish and reptiles. The fish
include the
jawless Agnatha, and the
jawed Gnathostomata. The
jawed fish
include both the
cartilaginous fish and the bony fish...
-
Galeaspida † (unranked)
Pituriaspida † (unranked)
Osteostraci †
Infraphylum Gnathostomata (jawed vertebrates)
class Placodermi † (armoured fish)
class Chondrichthyes...
- heart, and a lack of
opercula and swim bladders.
Within the
infraphylum Gnathostomata,
cartilaginous fishes are
distinct from all
other jawed vertebrates...
-
class †Thelodonti
class †Anaspida
class †Cephalaspidomorphi
Infraphylum Gnathostomata (jawed vertebrates)
class †Placodermi (Paleozoic
armoured forms; paraphyletic...
-
subphylum Vertebrata.
Examples of
infraphyla include the Mycetozoa, the
Gnathostomata and the Agnatha.
Hutchinson 1973. Hutchinson, John (1973). The families...
- and a
single nostril.
Instead of
vertically articulating jaws like
Gnathostomata (vertebrates with jaws), they have a pair of
horizontally moving structures...
- The
following is a list of the
classes in each
phylum of the
kingdom Animalia.
There are 107
classes of
animals in 33
phyla in this list. However, different...
