Evansia zabra (Davies, 1983) Jansonius, 1986

Originally Glomodinium, subsequently (and now) Evansia.
Holotype: Davies, 1983, pl.3, fig.12, text-figs.11A-C
Locus typicus: Central Amund Ringnes Dome, Northwest Territories, Canada
Stratum typicum: Bathonian-Oxfordian

Original diagnosis: Davies, 1983, p. 18: Glomodinium zabrum
A species of Glomodinium with a prolate, lozenge to ellipsoidal shape and a sharply terminating apical horn. Two anterior hypotractal bulges may be present as indications of antapical and lateral horns. The ornament is densely granulate. Tabulation is not evident . Archeopyle: 3I. Size: length - 64(78)90 Ám; breadth - 45(56)65 Ám.

Original description: Davies, 1983, p. 18: Glomodinium zabrum
The apical horn (9(14)19 Ám in length) is conical beginning immediately anterior to the intercalary archeopyle and terminating in an antennule (3-6.5 Ám in length) that is slightly enlarged distally. The rudimentary antapical horns are expressed by broad hypocystal bulges. The left antapical horn is generally more posteriorly displaced while the right antapical horn is often displayed as a conspicuous fold. Thegranulesarecoarse(0.5-1.5 Ám in diameter), irregular in shape and aligned adcingularly. Compression is most often lateral.

Affinities:
Davies, 1983, p.18: Glomodinium zabrum
This species resembles Gochteodinia verrucosa; however, the ornament is less robust. In Glomodinium zabros there is a definite 3I archeopyle.