Agnatha (/ˈæɡnəθə, æɡˈneɪθə/; from Ancient Greek ἀ- (a-) 'without' and γνάθος (gnáthos) 'jaws') is a paraphyletic infraphylum of non-gnathostome vertebrates...

and various classes of fish and reptiles. The fish include the jawless Agnatha, and the jawed Gnathostomata. The jawed fish include both the cartilaginous...

(Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 33,400 species of fish had been described as of...

taxonomy. Traditional classification divides fish into three extant classes (Agnatha, Chondrichthyes, and Osteichthyes), and with extinct forms sometimes classified...

following classification: Pterygota division Palaeoptera order Odonata order Agnatha (correct name: Ephemeroptera) †order Dictyoneuridea †order Megasecoptera...

cartilaginous fishes or primitive vertebrates. Cope (1889) coined the name Agnatha ("jawless") for a group that included the cyclostomes and a number of fossil...

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...

systematic index. It includes 40 species of Chondrichthyes, three species of Agnatha, the other are bony fishes. The following tags are used to indicate the...

classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Infraphylum: Agnatha Genus: †Areyongalepis Young, 2000 Species: †A. oervigi Binomial name †Areyongalepis...

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...

Examples of infraphyla include the Mycetozoa, the Gnathostomata and the Agnatha. Hutchinson 1973. Hutchinson, John (1973). The families of flowering plants...

(Craniata) (vertebrates – animals with backbones; 66,100+ species) Superclass 'Agnatha' paraphyletic (jawless vertebrates; 100+ species) Class Cyclostomata Infraclass...

with Metaspriggina and the other craniates (both gnathostomatans and Agnatha) grouped with Branchiostoma and the cephalochordates, and Pikaia out on...

first craniates and vertebrates. The first fish lineages belong to the Agnatha, or jawless fish. Early examples include Haikouichthys. During the late...

among jawless vertebrates have varied. Most workers have come to regard Agnatha as paraphyletic, having given rise to the jawed fishes. Because of shared...

2022. Retrieved 9 March 2022. Adivi, Sridhar. "Power star Pawan Kalyan is Agnatha Vaasi?". The Times of India. Archived from the original on 15 September...

million years. The Subclass Ostracodermi has been placed in the division Agnatha along with the extant Subclass Cyclostomata, which includes lampreys and...

morphological phylogenetic studies place lampreys and hagfish in the infraphylum Agnatha or Agnathostomata (both meaning without jaws). The other vertebrate infraphylum...

This article contains a list of all of the classes and orders that are located in the phylum Chordata. The subphyla Tunicata and Vertebrata are in the...

classifications. Traditional classification divides fish into three extant classes (Agnatha, Chondrichthyes, and Osteichthyes), and with extinct forms sometimes classified...

endocranium, the most basal portion of the skull. In Chondrichthyes and Agnatha, the occipital does not form as a separate element, but remains part of...

Liu; Lian-Tao Jia; Zhi-Kun Gai (2012). "A new genus of eugaleaspidiforms (Agnatha: Galeaspida) from the Ludlow, Silurian of Qujing, Yunnan, Southwestern...

used the term Amphirhina. It is a sister group of the jawless craniates Agnatha. Vertebrate classes The appearance of the early vertebrate jaw has been...

chordates. Some fish, both bony fish (Osteichthyes) and jawless fish (Agnatha), undergo metamorphosis. Fish metamorphosis is typically under strong control...

Obruchev, D.V. and Mark-Kurik, E.Yu., Psammosteidy (Agnatha, Psammosteidae) devona SSSR (Psammosteids (Agnatha, Psammosteidae) from the Devonian of the USSR)...

The list of marine vertebrates of the Cape Peninsula and False Bay is a list of marine and shore-based vertebrate animal species that form a part of the...

Conodonta †           Subphylum Vertebrata             Infraphylum Agnatha             Infraphylum Gnathostomata   Subkingdom Mesozoa     Phylum Mesozoa...

Märss, Tiiu, Mark VH Wilson, and Raymond Thorsteinsson. "New thelodont (Agnatha) and possible chondrichthyan (Gnathostomata) taxa established in the Silurian...

jointed bones; in cartilaginous fish (Chondrichthyes) and jawless fish (Agnatha), fins are fleshy "flippers" supported by a cartilaginous skeleton. Fins...

Gnathostomes), which have seven arches, and primitive jawless vertebrates (the Agnatha), which have nine. The original selective advantage offered by the jaw...