Priapulida
From Wikipedia, the free encyclopedia.
Priapulida (priapulid worms, or "penis worms") are a phylum of marine worms with an extensible spiny proboscis. Priapulid fossils are known at least as far back as the Middle Cambrian.
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Wikipedia: Priapulida |
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Priapulida From Wikipedia, the free encyclopedia. Priapulida (priapulid worms, or "penis worms") are a phylum of marine worms with an extensible spiny proboscis. Priapulid fossils are known at least as far back as the Middle Cambrian. |
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