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Sarcopterygii
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Euteleostomi
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Do all birds have a common ancestor? : askscience
https://www.reddit.com/r/askscience/comments/x00wf9/comment/im5px3n/
Sarcopterygii
Sarcopterygii - Wikipedia
https://en.wikipedia.org/wiki/Sarcopterygii
Sarcopterygii