Mikko's Phylogeny Archive
  Mikko's Phylogeny Archive Chordate groups
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<==o CENTROHELIDA [Heliozoa: Centrohelida]
   |-- Hedraiophryidae
   |-- Cymnosphaeridae
   |-- heterophryidae
   |-- Acanthocystidae
   `-- Raphidiophryidae


Reference(s):

Parker, S. P. (ed.), 1982: Synopsis and classification of living organisms. Vols. 1 & 2
–McGrew-Hill Book Company