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Appendix A

Baltisphaeridium centrocarpum

"Baltisphaeridium centrocarpum" (Deflandre and Cookson, 1955, p.272-273, pl.8, figs.3-4) Gerlach, 1961, p.192-193.

TYPE: Holotype: Deflandre and Cookson, 1955, pl.8, figs.3-4; Matsuoka et al., 1997, pl.1, figs.1-6.

HISTORY: NOW: Operculodinium centrocarpum. Originally Hystrichosphaeridium centrocarpum, subsequently Baltisphaeridium centrocarpum, thirdly Cordosphaeridium centrocarpum, fourthly Cordosphaeridium tiara subsp. centrocarpum, fifthly (and now) Operculodinium centrocarpum, sixthly Cordosphaeridium microtriainum subsp. centrocarpum, seventhly Cleistosphaeridium centrocarpum.

SYNONYM(S): Taxonomic junior synonyms: Operculodinium? echigoense, according to Matsuoka et al. (1997, p.22); Membranilarnacia delicata, according to Jain (1980, p.140).

MOTILE EQUIVALENT: Gonyaulax grindleyi Reinecke, 1967, according to Wall and Dale (1966, p.1025-1026) - however, see Matsuoka et al. (1997, p.24,26,30).

COMMENTS: [Gonyaulax grindleyi is a taxonomic junior synonym of Protoceratium reticulatum (Claparède and Lachmann, 1859) Bütschli, 1885, according to Dodge (1989, p.294).]

AGE: Miocene.


Infraspecific taxa:


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