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Taxon:
Class †
Ophiocistioidea
(Sollas, 1899)
(echinoderm)
Taxa
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Entity:
Echinozoa (Infraphylum)
..†Camptostromoidea (Class)
..†Cyclocystoidea (Class)
..Echinoidea (Class) - sea urchins and sand dollars
..†Edrioasteroidea (Class)
..†Edrioblastoidea (Class)
..†Helicoplacoidea (Class)
..Holothuroidea (Class) - sea cucumbers
..†Ophiocistioidea (Class)
....†Sollasina (Genus)
Basic information
Status
:
fossil
Paleontology
Period
:
Early Ordovician
-
Early Mississippian
©2004-2026 Universal Taxonomic Services
Last updated:
28 Aug 2026