Protoperidinium subgenus Protoperidinium section Brigantedinium Appendix B

"PROTOPERIDINIUM subgenus PROTOPERIDINIUM section BRIGANTEDINIUM" (Reid, 1977, p.432) Harland, 1982, p.396.  Name not validly published: see discussion under Brigantedinium.  NOW Brigantedinium.  Originally Brigantedinium (name not validly published), subsequently Protoperidinium subgenus Protoperidinium section Brigantedinium (name not validly published), thirdly (and now) Brigantedinium.  In proposing this combination, Harland (1982, p.396) did not fully reference the basionym.  Type: Wall, 1965b, text-figs.7,20, as Chytroeisphaeridia simplex.