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Definition of Lobe-finned fish
1. Noun. Any fish of the order Crossopterygii; most known only in fossil form.
Exact synonyms: Crossopterygian, Lobefin
Generic synonyms: Bony Fish
Group relationships: Crossopterygii, Subclass Crossopterygii
Specialized synonyms: Coelacanth, Latimeria Chalumnae
Generic synonyms: Bony Fish
Group relationships: Crossopterygii, Subclass Crossopterygii
Specialized synonyms: Coelacanth, Latimeria Chalumnae