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<p>I read the entire thread. Don’t change the question. Nobody mentioned sea stars, only starfish.</p>
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<p>Really? Where does it say that echinoderms existed before any type of vertebrate?</p>
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<p>I read the entire thread. Don’t change the question. Nobody mentioned sea stars, only starfish.</p>
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<p>Really? Where does it say that echinoderms existed before any type of vertebrate?</p>