-
Agnatha (/ˈæɡnəθə, æɡˈneɪθə/; from
Ancient Gr**** ἀ- (a-) 'without' and γνάθος (gnáthos) 'jaws') is a
paraphyletic infraphylum of non-gnathostome vertebrates...
- Chordata, with
currently about 69,963
species described.
Vertebrates span the
Agnatha or
jawless fish, and the
jawed Gnathostomata.
These include both the Chondrichthyes...
- (Osteichthyes),
cartilaginous fish (Chondrichthyes), and
jawless fish (
Agnatha).
According to FishBase, 33,400
species of fish had been
described as of...
-
cartilaginous fishes or
primitive vertebrates. Cope (1889)
coined the name
Agnatha ("jawless") for a
group that
included the
cyclostomes and a
number of fossil...
- taxonomy.
Traditional classification divides fish into
three extant classes (
Agnatha, Chondrichthyes, and Osteichthyes), and with
extinct forms sometimes classified...
-
Examples of
infraphyla include the Mycetozoa, the
Gnathostomata and the
Agnatha.
Hutchinson 1973. Hutchinson, John (1973). The
families of
flowering plants...
- Fish vary
greatly in size. The
whale shark and
basking shark exceed all
other fish by a
considerable margin in
weight and length. Fish are a paraphyletic...
- with
Metaspriggina and the
other craniates (both
gnathostomatans and
Agnatha)
grouped with
Branchiostoma and the cephalochordates, and
Pikaia out on...
- 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...
-
classification Domain:
Eukaryota Kingdom:
Animalia Phylum:
Chordata Infraphylum:
Agnatha Genus: †Areyongalepis Young, 2000 Species: †A. oervigi
Binomial name †Areyongalepis...
