Charlesdowniea tenuivirgula ssp. exouros, (Islam, 1983), Lentin and Vozzhennikova, 1989

Originally Kisselevia tenuivirgula subsp. exouros, subsequently Charlesdowniea tenuivirgula subsp. exouros, thirdly (and now) Sophismatia? exouros.

Holotype: Islam, 1983, pl.3, fig.3
Age: Middle Eocene