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Subclass Amphisternata Lambert, 1893, p. 63

Classification and/or Status	Junior synonym of Spatangoida Agassiz, 1840
Remarks	Mortensen's (1950) use of this term is equivalent to the Order Spatangoida here. Mortensen, T. A Monograph of the Echinoidea. V.1. Spatangoida.I. C. A. Reitzel, Copenhagen