Magallanesium asymmetricum

"asymmetricum" (Wilson, 1967a, p.62–63, figs.17–21) Quattrocchio and Sarjeant, 2003, p.140. Holotype: Wilson, 1967a, figs.19–21. NOW Alterbidinium. Originally Deflandrea, subsequently Alterbia (combination illegitimate), thirdly Senegalinium?, fourthly (and now) Alterbidinium, fifthly Magallanesium. Age: ?Eocene (erratic).