Membranilarnacia liradiscoides
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"?liradiscoides" (Wetzel, 1933b, p.52-53, pl.6, figs.3a-b) Downie and Sarjeant, 1965, p.129. Emendation: Marheinecke, 1992, p.116, as Membranilarnax liradiscoides. Holotype: not designated. Lectotype: Wetzel, 1933b, pl.6, fig.3a (specimen to right), designated by Lentin and Williams (1989, p.239). NOW Membranilarnax. Originally (and now) Membranilarnax, subsequently Membranilarnacia, thirdly Membranilarnacia?. Questionable assignment: Stover and Evitt (1978, p.64) as a problematic species. Age: Late Cretaceous.
Parent: Membranilarnacia