Evansia tripartita subsp. rotunda
From dinoflaj3
"subsp. rotunda" (Johnson and Hills, 1973, p.209, pl.3, figs.1–2; text-figs.11C) Jansonius, 1986, p.208. Holotype: Johnson and Hills, 1973, pl.3, fig.2. Originally Pareodinia tripartitus var. rotundus, subsequently Pareodinia tripartita subsp. rotunda, thirdly Evansia tripartita subsp. rotunda. Taxonomic senior synonym (at specific rank): Tenua (as Pareodinia, now Evansia) evittii, according to Wiggins (1975, p.105) and Lentin and Williams (1989, p.132). Age: late Bathonian.
Parent: Evansia tripartita