Osteolepiformes
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| Osteolepiformes Temporal range: 396–299 Ma Middle Devonian to Late Carboniferous |
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| Osteolepis. | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Class: | Sarcopterygii |
| Subclass: | Tetrapodomorpha |
| Superorder: | Osteolepiformes* |
| Clades | |
Osteolepiformes (or Osteolepidida) are a group of prehistoric lobe-finned fishes which appears first time during the Devonian period. The order contains five families: Canowindridae, Elpistostegidae, Megalichthyidae, Osteolepidae and Tristichopteridae. The superorder is generally considered to be paraphyletic because the characters that define it are mainly attributes of stem tetrapodomorphs.[1]
Below is a cladogram showing the paraphyly of Osteolepiformes modified from Ahlberg and Johanson (1998):[1] The Osteolepiformes are marked by the green bracket.
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Osteolepiformes
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[edit] References
- ^ a b Ahlberg, P. E.; and Johanson, Z. (1998). "Osteolepiforms and the ancestry of tetrapods". Nature 395 (6704): 792–794. Bibcode 1998Natur.395..792A. doi:10.1038/27421. http://www.biology.ualberta.ca/courses.hp/biol606/papers/Ahlberg+1998.pdf.
[edit] External links
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