1 record found in the Index Nominum Genericorum database.
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Polystephanosphaera Sarjeant, Geol. Mag. 97: 140. 5 Apr 1960.
T.: P. valensii Sarjeant
Upper Jurassic; Dorset, England.
FOSSIL-DINOPHYCEAE-HYSTRICHOSPHAERIDIACEAE (2) 9 Feb 1996