Basal Echinozoans (Taxonomic Rank: Group)

Extinct ancestral echinoderms including members of the Blastozoa, Edrioasteroidea, Cystoidea, Homalozoa, Ophiocistioidea, Helicoplacoidea, Cyclocystoidea, Edrioblastoidea, and Camptostromoidea.

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	Camptostroma Carneyella Cheirocystis Cryptogoleus Deltablastus Echinosphaerites Edrioaster Edriophus Enoploura Foerstediscus Glyptocystites Gogia Helicocystis Helicoplacus Heteroschisma Holocystites Iowacystis Isorophus Lepadocystis Lepidodiscus Mesocystis Mitrocystella Mitrocystites Pentremites Phyllocystis Placoblastus Pleurocystites Pleuroschisma Proteroblastus Pseudocrinites Schizoblastus Sollasina Streptaster Stromatocystites Timoroblastus

= Extinct Life Forms   = Living Creatures   = Fictional Beasts   = Inanimate Objects   = Ethereal Entities    = At least one collectible is catalogued