Membranilarnax pirus

"?pirus" Deunff, 1959, p.35-36, pl.10, figs.90-93. Holotype: Deunff, 1959, pl.10, fig.93. NOW Membranilarnacia?. Originally Membranilarnax?, subsequently (and now) Membranilarnacia?. Questionable assignment: Deunff (1959, p.35). N.I.A. Age: Ordovician (Caradoc).