Ctenocystoidea: new class of primitive echinoderms

R. A. Robison, and J. Sprinkle

1969

Article

Science 166:1512-1514

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Taxa discussed in this work:

• Ctenocystis
• Ctenocystis utahensis
• Ctenocystoidea

Taxonomy:

• Ctenocystoidea belongs to Echinodermata - Robison and Sprinkle (1969)