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Echinoderm
Key terms: arms live ophiuroids species disk brittle stars plates move bursae mouth coral disc generally tube feet echinoderms nerve muscles stomach ability sea stars skeleton length internal fossil pawson depths flexible dorsal parasite spines digestion vertebrae paleozoic david l ventral lateral calcite shallow slender pouches basket stars locomotion symmetry ossicles contains seafloor regenerate Search external links cited by footnotes on Wikipedia page Brittle star: |
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