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ROOT (OVERVIEW) > EUKARYOTA > Opisthokonta > METAZOA > Eumetazoa > Bilateria >

Deuterostomia (Ch. 31)

• Ambulacraria
  • Echinodermata (31-IV)
    • Asterozoa
      • Asteroidea - Starfishes
        • Platyasterida
          • Uractinina
            • Urasterellidae
              • Urasterella - Field
        • Neoasteroidea
          • Surculifera
            • Tripedicellaria
              • Forcipulatida
                • Asteriidae
                  • Asterias - Field
      • Ophiuroidea - Brittle Stars
    • Echinozoa
      • Echinoidea - Sea Urchins
        • ? - Hemineustes - Field
        • Cidaroidea
          • Cidaroida
            • Plegiocidaris - Field
        • Euechinoidea
          • Acroechinoidea
            • Carinacea
              • Pseudodiadematidae
                • Acrocidaris - Field
              • Irregularia
                • Atelostomata
                  • Spatangoida
                    • Micrasterina
                      • Micrasteridae
                        • Micraster - Field
    • Holothuroidea - Sea Cucumbers
    • Crinoidea - Feather Stars
      • Pentacrinus - Field
      • Articulata
        • Antedon - Field
      • Diplobathrida
        • Siphonocrinus - DMNS
      • Encrinida
        • Encrinidae
          • Encrinus - Field
      • Camerata
        • Monobathrida
          • Calliocrinus - DMNS
          • Dolatocrinicae
            • Eucalyptocrinitidae
              • Eucalyptocrinites - DMNS
    • Diploporita
      • Holocystites - DMNS
    • Blastoidea
      • Spiraculata
        • Troosticrinus - DMNS
  • Hemichordata (31-V) - Acorn Worms
• Chordata (Ch. 32) >>> (Fishes, Amphibians, Reptiles, Birds, Mammals)