Back عظميات الفم Arabic عظميات الفم ARZ Teleostomi Azerbaijani Teleòstoms Catalan Teleostomi Czech Teleostomi German Teleostomi Spanish Teleostomi Estonian Teleostomi Basque پیوستهدهانان Persian
| Teleostomes Temporal range: Ordovician – Present
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| an acanthodian | |
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| Four species of bony fish | |
Scientific classification  (obsolete as paraphyletic) | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Eugnathostomata |
| Clade: | Teleostomi C. L. Bonaparte, 1836 |
| Subgroups | |
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 | This article needs additional citations for verification. (May 2025) |
Teleostomi (from Greek τελεος, complete + Greek στόμα, mouth) is an obsolete taxon[1] of jawed vertebrates that supposedly includes the tetrapods, bony fish, and the wholly extinct acanthodian fish. Key characters of this group include an operculum and a single pair of respiratory openings, features which were lost or modified in some later representatives. The teleostomes include all jawed vertebrates except the chondrichthyans and the extinct class Placodermi.
Recent studies indicate that Osteichthyes evolved from placoderms like Entelognathus, while acanthodians are more closely related to modern chondrichthyes. Teleostomi, therefore, is not a valid, natural clade, but a polyphyletic group of species.[1]
- ^ a b Zhu M, Yu X, Ahlberg PE, Choo B, Lu J, Qiao T, Qu Q, Zhao W, Jia L, Blom H, Zhu Y (October 2013). "A Silurian placoderm with osteichthyan-like marginal jaw bones". Nature. 502 (7470): 188–93. Bibcode:2013Natur.502..188Z. doi:10.1038/nature12617. PMID 24067611. S2CID 4462506.