Tanyosphaeridium prolixispinosum
From dinoflaj2
"prolixispinosum" (Davey and Williams, 1966b, p.76-77, pl.8, figs.2-3) Duxbury, 1980, p.132. Holotype: Davey and Williams, 1966b, pl.8, fig.3; Fauconnier and Masure, 2004, pl.60, figs.2-4. NOW Oligosphaeridium. Originally (and now) Oligosphaeridium, subsequently Tanyosphaeridium. Age: Cenomanian.
Parent: Tanyosphaeridium