echinoderm echinoderm


  • (n) marine invertebrates with tube feet and five-part radially symmetrical bodies


  • Paleontologists Discover New Species of Sea Creature

    Researchers have found a new, fossilized sea species that lived on Earth about 520 million years ago.  Andrew Smith, a paleontologist, said the new creature is called Helicocystis moroccoensis. It was found in Morocco and "has characteristics that place it as the most primitive echinoderm that has a fivefold symmetry." Echinoderms are a group of animals that often have five-point symmetries ...
    on June 28, 2013     Source: Opposing Views

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amiable amiable
/ˈeɪ mi ə bəl /