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'''''Palaeoniscum''''' is an extinct genus of [[ray-finned fish]] from the [[Permian]] period of Europe, North America, and South Africa. |
'''''Palaeoniscum''''' is an extinct [[genus]] of [[ray-finned fish]] from the [[Permian]] period of Europe, North America, and South Africa established 1818 by [[Henri Marie Ducrotay de Blainville|Blainville]] <ref>Blainville, H.-M. D. (1818). ''Sur les Ichthyolites, les Poisons Fossiles; Article extrait du Nouveau Dictionnaire d’Histoire Naturelle'', vol. 28, Abel Lange, p. 16.</ref>. |
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''Palaeoniscum'' had a [[torpedo]]-shaped body {{convert|30|cm|in|abbr=on}} in length, with a deeply forked [[caudal fin]] and tall [[dorsal fin]], indicating that it was a fast swimmer. It was probably an active predator, feeding on other freshwater fish. Its sharp [[teeth]] could be replaced when lost, a trait also seen in modern [[shark]]s. Like other early ray-finned fish, ''Palaeoniscum'' had air sacs connected to the mouth, which served as a primitive [[swim bladder]].<ref |
''Palaeoniscum'' had a [[torpedo]]-shaped body {{convert|30|cm|in|abbr=on}} in length, with a deeply forked [[caudal fin]] and tall [[dorsal fin]], indicating that it was a fast swimmer. It was probably an active predator, feeding on other freshwater fish. Its sharp [[teeth]] could be replaced when lost, a trait also seen in modern [[shark]]s. Like other early ray-finned fish, ''Palaeoniscum'' had air sacs connected to the mouth, which served as a primitive [[swim bladder]].<ref> {{cite book |editor=Palmer, D.|year=1999 |title= The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals|publisher= Marshall Editions|location=London|page= 36|isbn= 1-84028-152-9}}</ref> |
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==References== |
==References== |
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Revision as of 07:28, 28 July 2019
| Palaeoniscum Temporal range:
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| Palaeoniscum vratislavensis | |
| Scientific classification | |
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| Genus: | Palaeoniscum Blainville, 1818
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| Species: | P. freieslebeni (type)
P. vratislavensis |
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Palaeoniscus | |
Palaeoniscum is an extinct genus of ray-finned fish from the Permian period of Europe, North America, and South Africa established 1818 by Blainville [1].
Palaeoniscum had a torpedo-shaped body 30 cm (12 in) in length, with a deeply forked caudal fin and tall dorsal fin, indicating that it was a fast swimmer. It was probably an active predator, feeding on other freshwater fish. Its sharp teeth could be replaced when lost, a trait also seen in modern sharks. Like other early ray-finned fish, Palaeoniscum had air sacs connected to the mouth, which served as a primitive swim bladder.[2]
References
- ^ Blainville, H.-M. D. (1818). Sur les Ichthyolites, les Poisons Fossiles; Article extrait du Nouveau Dictionnaire d’Histoire Naturelle, vol. 28, Abel Lange, p. 16.
- ^ Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 36. ISBN 1-84028-152-9.
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