Membranilarnacia pterococcoides subsp. minuta

"?subsp. minuta" (Rozen, 1965, p.312-313, pl.2, figs.4-5; text-figs.23-24) Lentin and Williams, 1973, p.92.  Name not validly published; holotype not designated.  Originally Membranilarnacia pterococcoides var. minuta (name not validly published) subsequently Membranilarnacia pterococcoides subsp. minuta (name not validly published), thirdly Eatonicysta pterococcoides subsp. minuta (name not validly published), fourthly Membranilarnacia pterococcoides? subsp. minuta.  Questionable assignment: Lachkar and Masure in Fauconnier and Masure (2004, p.389) as a problematic taxon.  Age: Late Eocene. Parent: Membranilarnacia pterococcoides