- Gr**** ἀ- (a-) 'without', and γνάθος (gnáthos) 'jaws') is an
infraphylum of
jawless fish in the
phylum Chordata,
subphylum Vertebrata,
consisting of both living...
- fish with jaws, and most
jawless fish
became extinct during the Tri****ic period.
However studies of the cyclostomes, the
jawless hagfishes and lampreys...
-
lineages belong to the Agnatha, or
jawless fish.
Early examples include Haikouichthys.
During the late Cambrian, eel-like
jawless fish
called the conodonts, and...
-
comprise groups such as the
following infraphyla and classes:
Agnatha or
jawless fish,
which include: †Conodonta †Ostracodermi
Cyclostomi (hagfish and lampreys)...
- but
lacking limbs with digits. Fish can be
grouped into the more
basal jawless fish and the more
common jawed fish, the
latter including all
living cartilaginous...
-
Sacabambaspis is an
extinct genus of
jawless fish that
lived in the
Ordovician period.
Sacabambaspis lived in
shallow waters on the
continental margins...
- of
vertebrates that
comprises the
living jawless fishes: the
lampreys and hagfishes. Both
groups have
jawless mouths with
horny epidermal structures that...
-
Jawless vertebrates,
which today consist entirely of
lampreys and hagfish, have an
adaptive immune system similar to that
found in
jawed vertebrates....
- one species.
class Agnatha (
jawless fish)
Subclass Cyclostomata (hagfish and lampreys)
Subclass Ostracodermi (armoured
jawless fish) †
class Chondrichthyes...
- list of
fossil fish
research presented in 2024 is a list of new taxa of
jawless vertebrates, placoderms, acanthodians,
fossil cartilaginous fishes, bony...
