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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
The International Code of Zoological Nomenclature (ICZN) is a widely accepted convention in zoology that rules the formal scientific naming of organisms treated as animals. It is also informally known as the ICZN Code, for its formal author, the International Commission on Zoological Nomenclature (which shares the acronym "ICZN"). The rules ...
Critically endangered (CR) species face an extremely high risk of extinction in the wild. As of December 2021, the International Union for Conservation of Nature (IUCN) lists 673 critically endangered amphibian species, including 146 which are tagged as possibly extinct. [1] [2] 9.2% of all evaluated amphibian species are listed as critically ...
The smooth handfish (Sympterichthys unipennis) is a possibly extinct species of handfish in the genus Sympterichthys. It was likely endemic to waters off the coast of Tasmania, mainly the D’Entrecasteaux Channel. It was declared extinct by the IUCN Red List in 2020, marking the first entirely marine fish classified as such.
New, rank-free classification of extant and extinct ray-finned fishes is presented by Near & Thacker (2024). [ 117 ] Dankina, Šečkus & Plax (2024) describe new fossil material of ray-finned fishes from the Devonian (Eifelian and Givetian) strata in Belarus and Lithuania , including scales of members of the genera Cheirolepis and Orvikuina ...
The Lost River sucker (Deltistes luxatus), known as the c'waam (pronounced / tʃ w ɑː m / CHWAHM) by the Klamath Tribes, [5] [6] is a species of ray-finned fish in the family Catostomidae.
Dr Alex Bond, senior curator in charge of birds at the Natural History Museum, has been part of the team tracing the fate of the curlew and said the extinction of bird species is “going to be ...
Haikouichthys / ˌ h aɪ k u ˈ ɪ k θ ɪ s / is an extinct genus of craniate (animals with notochords and distinct heads) that lived 518 million years ago, during the Cambrian explosion of multicellular life. The type species, Haikouichthys ercaicunensis, was first described in 1999. [2]