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Rhynchodiniopsis hyaloderma

"Rhynchodiniopsis? hyaloderma" (Deflandre, 1939b, p.144, pl.6, figs.3-4 ex Sarjeant, 1967b, p.252) Sarjeant, 1982b, p.36.

TYPE: Holotype: Deflandre, 1939b, pl.6, figs.3-4; Jan du Chêne et al., 1986a, pl.58, figs.1-5.

HISTORY: NOW: Impagidinium?. Originally Palaeoperidinium (name not validly published), subsequently Gonyaulacysta, thirdly Gonyaulacysta?, fourthly Rhynchodiniopsis?, fifthly (and now) Impagidinium?. Questionable assignment: Sarjeant (1982b, p.36).

AGE: Kimmeridgian.


Infraspecific taxa:


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