Grant, U. S. I. & Hertlein, L. G. 1956. Schizaster morlini, a New Species of Echinoid from the Pliocene of Imperial County, California. Bulletin of the Southern California Academy of Sciences 55, 107-109.
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Grant, U. S. I.; Hertlein, L. G.
1956
Schizaster morlini, a New Species of Echinoid from the Pliocene of Imperial County
California. Bulletin of the Southern California Academy of Sciences