Gnathostomata

	Mikko's Phylogeny Archive	Main Groups of Organisms
	Gnathostomata

After Parker, 1982 and CAS, 1998

<==o GNATHOSTOMATA [ICZN rules; article 1b4]
   |--o HOLECTYPOIDA
   |  `-- Echinoneidae
   `--o CLYPEASTEROIDA
      |--o CLYPEASTERINA
      |  |-- Clypeasteridae
      |  `-- Arachnoididae
      |--o LAGANINA
      |  |-- Fibulariidae
      |  `-- Laganidae
      |--o SCUTELLINA
      |  |-- Dendrasteridae
      |  |-- Echinarachniidae
      |  |-- Mellitidae
      |  `-- Astriclypeidae
      `--o ROTULINA
         `-- Rotulidae*

Reference(s):

California Academy of Sciences, 1998-: The CAS Echinoderm webpage.
–iNet: http://www.calacademy.org/research/izg/echinoderm/classify.htm

Conway Morris, S., 1993: The fossil record and early evolution of the Metazoa.
–Nature, vol. 361, 21 January, pp. 219-225

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