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The study of prehistoric fish is called paleoichthyology. A few living forms, such as the coelacanth are also referred to as prehistoric fish, or even living fossils, due to their current rarity and similarity to extinct forms. Fish which have become recently extinct are not usually referred to as prehistoric 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.
Chrysolepis is a genus of prehistoric marine lobe-finned fish that lived during the Late Devonian period. [1] It contains a single species, C. orlensis, known from the middle Famennian of Oryol Oblast, Russia. [2] It is the only member of the family Chrysolepididae, erected due to its highly distinct morphology unseen among other osteolepiforms.
Rhenanida ("Rhine fish") were flattened, ray-like, bottom-dwelling predators with large, upturned mouths that lived in marine environments. The rhenanids were once presumed to be the most primitive, or at least the closest to the ancestral placoderm, as their armour was made of unfused components—a mosaic of tubercles—as opposed to the ...
Brachydegma is an extinct genus of prehistoric freshwater ray-finned fish that lived during the Leonardian age (Cisuralian/lower Permian) in what is now Texas, United States.It is known from two fossils, which were recovered from the Clear Fork Formation.
Earlier we lost one 12 feet under the boat and had a big head left when a shark got it,” Miller recalled. “But we got this one up with a gaff in it and started freaking out when we got it in ...
Leedsichthys, a giant Jurassic pachycormid. This list of prehistoric bony fish is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be bony fish (class Osteichthyes), excluding purely vernacular terms.
"D."vectensis, a former species from the Isle of Wight. Diplomystus was formerly used as a wastebasket taxon for many different species of fossil clupeomorphs. [8]A trio of Early Cretaceous (late Valanginian to early Barremian-aged) [9] freshwater species that inhabited lakes in what is now Japan and Korea ('D.' altiformis Yabumoto, 1994, 'D.' kokuraensis Uyeno, 1979, and 'D.' primotinus Uyeno ...