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MEMBRANILARNAX Wetzel, 1933b, p.51.  Emendation: Sarjeant, 1985b, p.149,151–152.  Taxonomic junior synonym: Membranilarnacia, by implication in Downie and Sarjeant (1965, p.130) who questionably transferred the "type species" of Membranilarnax, Membranilarnax pterospermoides, to Membranilarnacia — however, Lentin and Williams (1973, p.93) retained MembranilarnaciaStover and Evitt (1978, p.295) considered Membranilarnax to be an acritarch genus.  Sarjeant (1985b, p.149,151–152) considered Membranilarnax to be a skolochorate dinoflagellate cyst.  This name was not validly published in Wetzel (1932, p.136), since that author did not provide a description or designate a type, the latter being a requirement at that time under the I.C.Z.N.  Type: Wetzel, 1933b, pl.6, fig.2, as Membranilarnax pterospermoides.

Parent: Order Gonyaulacales Suborder uncertain Family uncertain

Species List: