
Gryouchus
    
    Encyclopedia
    
        Gryouchus is an extinct genus of ray-finned fish
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Fish
Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate  animals that lack limbs with digits.  Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...
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