Muderongia simplex subsp. microperforata

subsp. microperforata Davey, 1982b, p.30, pl.9, figs.4-6.  Emendation: Monteil, 1991b, p.474, as Muderongia microperforata.  Holotype: Davey, 1982b, pl.9, figs.4-5; Monteil, 1991b, pl.2, fig.10.  Originally (and now) Muderongia simplex subsp. microperforata, subsequently Muderongia microperforata.  Poulsen (1996, p.59) retained this taxon as a subspecies of Muderongia simplex.  Age: Late Ryazanian-Early Valanginian. Parent: Muderongia simplex