Peridinium conicum var. larjakiense Appendix B

"var. larjakiense" Vozzhennikova, 1967, p.71–72, pl.16, figs.1a–b,2a–b.  Holotype: Vozzhennikova, 1967, pl.16, figs.1a–b; Lentin and Vozzhennikova, 1990, text-fig.32; lost according to Lentin and Vozzhennikova (1990, p.61).  Originally Peridinium conicum var. larjakiense, subsequently Palaeoperidinium deflandrei subsp. larjakiense, thirdly Cooksoniella larjakiensis, fourthly Palaeoperidinium larjakiense.  Taxonomic senior synonym: Peridinium (now Palaeoperidinium) pyrophorum, according to Lentin and Vozzhennikova (1990, p.61).  Age: Paleocene.

Parent: Peridinium conicum_Appendix B