The Palaeontological Association | Reg. Charity No. 1168330 · Sarjeant, in Davey et al. (1966),...
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The Palaeontological Association | Reg. Charity No. 1168330 · Sarjeant, in Davey et al. (1966), reviewing cysts with a Gonyaulax-type tabulation, erected the new genus Rhaetogonyaulax