A single individual or specimen of an extinct echinoderm (sea creature) from the group Edrioasteroidea.
Singular form from the taxonomic class name 'Edrioasteroidea.' An '-oid' suffix means 'resembling' or indicates a member of a taxonomic group.
Paleontologists find edrioasteroid fossils that are so well-preserved sometimes you can see the little tube feet they used to catch food—which is amazing because soft body parts rarely fossilize.
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