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Teleostomi
| Teleostomes | |
|---|---|
| |
| The Atlantic bluefin tuna | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Eugnathostomata |
| Clade: | Teleostomi C. L. Bonaparte, 1836 |
| Subgroups | |
| |
Teleostomi is a grouping of fish in the Gnathostomata ('jawed fish'). It contains the extinct Acanthodii ('spiny sharks'), and the Osteichthyes ('bony fish'). Teleostomi have two adaptations which relate to their respiration: First, they had some kind of operculum (a set of bones which cover the gills). The also developed a primitive lung. As of 2020, there is no agreement, as to the level of the grouping. Some people see it as a clade, others say it is a crown group.
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