Isorophida

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Isorophida
Temporal range: 488.3–272.5  Ma
Haeckel Cystoidea.jpg
Scientific classification
Kingdom:
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Order:
Isorophida

Bell, 1976 [1]
Families

Isorophida (the isorophids) is an extinct order of prehistoric echinoderms in the class Edrioasteroidea.

References

  1. Phylogenetic implications of ontogenetic development in the class Edrioasteroidea (Echinodermata). BM Bell, Journal of Paleontology, 1976