Glomodinium evittii (Pocock, 1972) Davies, 1983

Now Evansia. Originally Tenua Eisenack, 1958, subsequently Pareodinia, thirdly Glomodinium, fourthly (and now) Evansia. This combination was not validly published by Dodekova, 1975, since that author did not fully reference the basionym.
Tax. sr. synonym of Pareodinia tripartita Johnson and Hills, 1973, according to Wiggins, 1975, and Lentin and Williams, 1989.
Tax. sr. synonym of Pareodinia tripartita var. rotunda Johnson and Hills, 1973, according to Wiggins, 1975, and Below, 1990.

Holotype: Pocock, 1972, pl.24, fig.8; lost, according to Jansonius, 1986.
Lectotype: Jansonius, 1986, pl.6, figs.8-9, designated by Jansonius, 1986.
Locus typicus: Royalite DeWinton, W Canada
Stratum typicum: Late Bajocian-Callovian

Original description: Pocock, 1972, p.94-95: Tenua evittii
Vesicle dorso-ventrally flattened; outline oval with short projecting apical horn; archeopyle apical, suture indicating offset sulcal notch; apical portion of test plated, six hexagonal precingular plates normally being detectable; test about 1.0 µm thick; ornamented with small, closely packed granules; granules all about the same size (0.5 µm diameter approx.) except at the tip of the apical horn where one or two small blunt-tipped processes may be developed (see diagram); colour yellow orange.
Grain size 45.0-52.0x59.0-60.0 µm, Holotype 45.0x59.0 µm (including apical horn). Apical horn 10.0 µm approximately, Holotype 10.0 µm.