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noun
Any fish of the order Crossopterygii; most known only in fossil form.
synonyms: lobe-finned fish, lobefin.
is a specific kind of: bony fish.
is a broader term that covers: coelacanth, Latimeria chalumnae.
is a member of: Crossopterygii, subclass Crossopterygii.
Find more on crossopterygian elsewhere: etymology - rhymes - Wikipedia.
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