Tetrachacysta? keenei N.G. Marshall, 1989, p.51-52, pl.7, figs.1-12; text-figs.15A-C.
TYPE: Holotype: N.G. Marshall, 1989, pl.7, figs.5-7; text-fig.15B; Fensome et al., 1996, figs.4-6,11 - p.2179. HISTORY: Questionable assignment: N.G. Marshall (1989, p.51). AGE: Turonian-Early Santonian.
Infraspecific taxa: Go up one level. DINOFLAJ (c) 1998 |