Wetzeliella tenuivirgula subsp. crassiramosa

"subsp. crassiramosa" (Williams and Downie, 1966b, p.189-190; pl.19, figs.1,5,7; text-fig.50) Lentin and Williams, 1973, p.143.  Holotype: Williams and Downie, 1966b, pl.19, fig.7.  NOW Charlesdowniea crassiramosa.  Originally Wetzeliella tenuivirgula var. crassiramosa, subsequently Wetzeliella tenuivirgula subsp. crassiramosa, thirdly Kisselevia tenuivirgula subsp. crassiramosa, fourthly Kisselevia crassiramosa, fifthly (and now) Charlesdowniea crassiramosa.  Age: Early Eocene. Parent: Wetzeliella tenuivirgula