Thalassiphora patula
From dinoflaj2
patula (Williams and Downie, 1966c, p.217, pl.24, figs.1-2; text-fig.58) Stover and Evitt, 1978, p.195. Holotype: Williams and Downie, 1966c, pl.24, fig.2; text-fig.58. Originally Adnatosphaeridium?, subsequently (and now) Thalassiphora. Taxonomic senior synonym: Pterospermopsis (as and now Thalassiphora) pelagica, according to Benedek and Gocht (1981, p.59) - however, Lentin and Williams (1985, p.354) retained Thalassiphora patula. Taxonomic junior synonym: Subathua sahnii, according to Stover and Williams (1987, p.207) and Lentin and Williams (1989, p.354). Bujak et al. (1980, p.36) also proposed this combination. Age: Early Eocene.
Parent: Thalassiphora
