The PEDIGREE of
Subphylum Eleutherozoa

     (Echinoidea & Holothuroidea clade together as Echinozoa)

 "Child(ren)":       Superclass Asterozoa   ;   Echinoidea (sea urchins : sand dollars)   ;   Holothuroidea (sea cucumbers)   ;   Ophiuroidea (brittle stars : basket stars)
________________________________________________________________________________________________________ 
/-- Domain of Eukaryotes   +====> [ 54]
/-- Superempire Unikonta
/-- Empire of Opisthokonts (Fungi & Animals)
/-- Superkingdom Holozoa
/-- Kingdom of Animals
/-- Subkingdom of Metazoa (Multicellular Animals)
/-- Superbranch Eumetazoa
/-- Superphylum Planulozoa
/-- Clade of Bilateria and Placozoa
/   | (skip this generation?)
/-- Branch Bilateria
/-- Infrakingdom (Grade) of Coelomates  (570 M BC)
/   | or: prob. Clade Nephrozoa
/-- Superphylum Deuterostomia (Chordates, Echinoderms, & kin)
/-- Clade Ambulacraria
/-- Clade Coelomopora
/-- Phylum Echinodermata
/  
- Subphylum Eleutherozoa
 

 
  ``4-Great Grandchild:''       Ochre Sea Star
 

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FabPed Genealogy Vers. 80   ©   Jamie, 1997-2017