Hystrichokolpoma cinctum subsp. turgidum

subsp. turgidum (Williams and Downie, 1966a, p.178-179, pl.17, fig.5) Lentin and Williams, 1985, p.173.  Holotype: Williams and Downie, 1966a, pl.17, fig.5.  Originally Hystrichokolpoma eisenackii var. turgidum, subsequently Hystrichokolpoma eisenackii subsp. turgidum, thirdly Hystrichokolpoma bulbosum subsp. turgidum, fourthly (and now) Hystrichokolpoma cinctum subsp. turgidum.  Age: Early Eocene. Parent: Hystrichokolpoma cinctum