''Castanidium'' is a genus of cercozoans in the family
Castanellidae
Castanellidae is a family of cercozoans in the order Phaeocalpida
Phaeocalpida is an order of cercozoans in the class Phaeodarea
Phaeodarea or Phaeodaria is a group of amoeboid cercozoan organisms. They are traditionally considered radiolar ...
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References
External links
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''Castanidium''at Marine Species Identification
Phaeodaria
Rhizaria genera
{{Cercozoa-stub