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Image of Aspidodiadema A. Agassiz 1879
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Sea Urchins

Echinoidea Leske 1778

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show all Body symmetry cellularity described accepted species extinction status first appearance forms habitat last appearance locomotion mineralized skeleton contains number of dna records in ggbn number of fossil occurrences number of specimens in ggbn percent of marine species currently described percent surveyed species not yet known to science percent synonyms among marine species reproduction sexual system total unknown marine species trophic guild type specimen repository undescribed marine species present in museum collections undiscovered marine morphospecies undiscovered species (molecular cryptic) visual system
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