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Fishes are a paraphyletic group and for this reason, the class Pisces seen in older reference works is no longer used in formal taxonomy.Traditional classification divides fish into three extant classes (Agnatha, Chondrichthyes, and Osteichthyes), and with extinct forms sometimes classified within those groups, sometimes as their own classes: [1]
As of September 2016, the International Union for Conservation of Nature (IUCN) lists 65 extinct fish species, 87 possibly extinct fish species, and six extinct in the wild fish species. [ 1 ] [ 2 ] Cartilaginous fish
Coelacanths (/ ˈ s iː l ə k æ n θ / ⓘ SEE-lə-kanth) (order Coelacanthiformes) are an ancient group of lobe-finned fish (Sarcopterygii) in the class Actinistia. [2] [3] As sarcopterygians, they are more closely related to lungfish and tetrapods (which includes amphibians, reptiles, birds and mammals) than to ray-finned fish.
WikiProject Fishes aims to help organise our rapidly growing collection of articles about fish taxa.Issues outside the scope of this WikiProject include fishkeeping (fish aquarium topics), fishing, fisheries, fish cuisine topics, fish farm topics, fish market topics, fish processing topics, fish product sales topics, fish products topics, and fish trap topics.
Xiphactinus (from Latin and Greek for "sword-ray") is an extinct genus of large predatory marine ray-finned fish that lived during the late Albian to the late Maastrichtian. [4] The genus grew up to 5–6 metres (16–20 ft) in length, and superficially resembled a gargantuan, fanged tarpon .
[2] All the species occur in freshwater habitats in tropical Africa and the Nile River system, mainly swampy, shallow floodplains and estuaries. Cladistia, polypterids and their fossil relatives, are considered the sister group to all other extant ray-finned fishes (Actinopteri). [3] [4] They likely diverged from Actinopteri at least 330 ...
Arowana species typically grow to around 2 to 3 feet (0.6 to 0.9 m) in captivity. Arowanas can be troublesome to keep as pets. They are expensive, require wide living space, are picky eaters, and need a lot of care. Arowanas are renowned for their aggressive behavior and personality. Several species of osteoglossids exhibit parental care.
Pages in category "Extinct fish" The following 3 pages are in this category, out of 3 total. This list may not reflect recent changes. ...