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The genus name Potanichthys is a portmanteau of the Ancient Greek ποτάνος (potanos, winged/flying) and ιχθύς (ichthys, fish). The species epithet refers to Xingyi city which is near the site where Potanichthys was discovered. [2] [3] Potanichthys was a small fish with an estimated total length of 15.3 cm (6.0 in). It shared ...
Brazilichthys is an extinct genus of prehistoric freshwater ray-finned fish that lived during the Cisuralian (early Permian) epoch in what is now Maranhão, Brazil (Parnaíba Basin). [ 1 ] [ 2 ] The type and only species, B. macrognathus , is known from a single partially complete skull (ca. 80 millimetres (3.1 in) long), [ 3 ] which was ...
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.
Guildayichthyidae is a prehistoric family of marine fish from the Mississippian Bear Gulch Limestone of Montana. [ 1 ] [ 2 ] It is the only family in the order Guildayichthyiformes . Guildayichthyids possess an uncommon mixture of primitive and modern characteristics in their skull bones.
Amphistium paradoxum (from Greek: ἀμφί amphi, 'on both sides', Greek: ιστίον istion 'sail', and Greek: παράδοξος paradoxus 'extraordinary'), [1] the only species classified under the genus Amphistium and the family Amphistiidae, is a fossil fish which has been identified as a Paleogene relative of the flatfish, and as a transitional fossil. [2]
Rhacolepis is an extinct genus of ray-finned fish [1] from the Cretaceous Santana Formation of Brazil. [2] Complete fossilised hearts from this species have been recovered. [ 3 ]
Tanyrhinichthys is an extinct genus of prehistoric ray-finned fish with a lengthened rostrum that lived during the Kasimovian (Missourian) age (Upper Pennsylvanian, Upper Carboniferous) in what is now New Mexico, United States. [1] Fossils were recovered from Tinajas Member of the Atrasado Formation (Kinney Brick Quarry). [1]
Cretatriacanthus is an extinct genus of prehistoric marine ray-finned fish from the Late Cretaceous.It contains a single species, C. guidottii from the late Campanian or early Maastrichtian of Nardò, Italy. [2]
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