- subclass Crossopterygii as a noun:
- 1
subclass Crossopterygii
noun
1 subclass Crossopterygii
Fishes having paired fins resembling limbs and regarded as ancestral to amphibians.
synonym: Crossopterygii.
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noun
Fishes having paired fins resembling limbs and regarded as ancestral to amphibians.
synonym: Crossopterygii.
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