Agnatha (/ˈæɡnəθə, æɡˈneɪθə/; from Ancient Greek ἀ- (a-) 'without', and γνάθος (gnáthos) 'jaws') is an infraphylum of jawless fish in the phylum Chordata... 41 KB (2,703 words) - 16:50, 25 April 2024 |
(Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 33,400 species of fish had been described as of... 15 KB (1,280 words) - 03:06, 15 January 2024 |
with Metaspriggina and the other craniates (both gnathostomatans and Agnatha) grouped with Branchiostoma and the cephalochordates, and Pikaia out on... 10 KB (956 words) - 02:07, 8 September 2023 |
taxonomy. Traditional classification divides fish into three extant classes (Agnatha, Chondrichthyes, and Osteichthyes), and with extinct forms sometimes classified... 4 KB (526 words) - 12:20, 7 February 2024 |
Areyongalepis (redirect from Areyonga (agnatha)) classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Infraphylum: Agnatha Genus: †Areyongalepis Young, 2000 Species: †A. oervigi Binomial name †Areyongalepis... 2 KB (144 words) - 09:20, 16 November 2022 |
List of chordate orders (section Infraphylum Cyclostomata, Superclass Agnatha: Paraphyletic jawless vertebrates) This article contains a list of all of the classes and orders that are located in the Phylum Chordata. Order Amphioxiformes Genus Pikaia † Order Enterogona... 14 KB (945 words) - 16:45, 25 April 2024 |
List of largest fish (section Jawless fish (Agnatha)) 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... 75 KB (8,256 words) - 12:48, 28 April 2024 |
List of animal classes (section Agnatha) 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... 8 KB (503 words) - 09:28, 29 April 2024 |
first craniates and vertebrates. The first fish lineages belong to the Agnatha, or jawless fish. Early examples include Haikouichthys. During the late... 46 KB (4,511 words) - 16:55, 25 April 2024 |
million years. The Subclass Ostracodermi has been placed in the division Agnatha along with the extant Subclass Cyclostomata, which includes lampreys and... 16 KB (1,032 words) - 00:26, 25 April 2024 |
evolved during the Early Paleozoic; by the Devonian, all modern groups (Agnatha, Chondrichthyes, and Osteichthyes) were already present. Devonian aquatic... 119 KB (6,252 words) - 16:38, 25 April 2024 |
Obruchev, D.V. and Mark-Kurik, E.Yu., Psammosteidy (Agnatha, Psammosteidae) devona SSSR (Psammosteids (Agnatha, Psammosteidae) from the Devonian of the USSR)... 5 KB (454 words) - 02:10, 6 January 2024 |
Tunicata (e.g., Ciona) Subphylum 4. Vertebrata (= Craniata) Superclass 1. Agnatha Class 1. Cyclostomata Class 2. †Cephalaspidomorphi (e.g., †Cephalaspis)... 19 KB (1,579 words) - 06:49, 23 December 2023 |
Conodonta † Subphylum Vertebrata Infraphylum Agnatha Infraphylum Gnathostomata Subkingdom Mesozoa Phylum Mesozoa... 75 KB (4,869 words) - 14:08, 31 March 2024 |