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Endoscrinium granulatum
Endoscrinium granulatum (Raynaud, 1978) Lentin and Williams, 1981
Originally Athigmatocysta, subsequently (and now) Endoscrinium, thirdly Scriniodinium.
Jan du Chêne et al., 1986, and Stover and Williams, 1987, transferred this species to Scriniodinium Klement, 1957. Lentin and Williams, 1989, 1993 retained it in Endoscrinium.
Holotype: Raynaud, 1978, pl.2, fig.6; Jan du Chêne et al., 1986, pl.111, figs.13-14
Age: Late Kimmeridgian-Portlandian
Translation Courtinat, 1989: LPP
Remark: Courtinat, 1989, p.216
E. granulatum is characterized by the strongly granulate endophragm at the antapical pole. However this local granulation may be unnoticed depending on the orientation of the cyst. The outline is variable; it corresponds to that of Sirmiodinium grossii or that of Polygonifera evittii.
Originally Athigmatocysta, subsequently (and now) Endoscrinium, thirdly Scriniodinium.
Jan du Chêne et al., 1986, and Stover and Williams, 1987, transferred this species to Scriniodinium Klement, 1957. Lentin and Williams, 1989, 1993 retained it in Endoscrinium.
Holotype: Raynaud, 1978, pl.2, fig.6; Jan du Chêne et al., 1986, pl.111, figs.13-14
Age: Late Kimmeridgian-Portlandian
Translation Courtinat, 1989: LPP
Remark: Courtinat, 1989, p.216
E. granulatum is characterized by the strongly granulate endophragm at the antapical pole. However this local granulation may be unnoticed depending on the orientation of the cyst. The outline is variable; it corresponds to that of Sirmiodinium grossii or that of Polygonifera evittii.