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Megalonyx

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Megalonyx \Meg`a*lon"yx\, n. [NL., from Gr. me`gas, mega`lh,
   great + 'o`nyx claw.] (Paleon.)
   An extinct quaternary mammal, of great size, allied to the
   sloth.
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