Meiourogonyaulax mombasaensis Mungai in Jiang et al., 1992

Originally (and now) Meiourogonyaulax, subsequently Lithodinia. This species is here retained in Meiourogonyaulax following the retention of the genus by Riding and Helby (2001d, p.81,83).
Holotype: Mungai in Jiang et al. 1992, pl.2, fig.1
Locus typicus: Mto Panga Quarry, Kenya
Stratum typicum: Kimmeridgian-Tithonian

Original diagnosis: Mungai in Jiang et al. 1992, p. 87
A species of Meiourogonyaulax characterised by its smooth surface, spherical shape and by the tabulation being clearly marked by distinct low lines of thickening along the parasutures.

Original description: Mungai in Jiang et al. 1992, p. 87
The cyst consists of thin but firm autophragm <1µm in thickness. Its surface is almost completely smooth. Paratabulation is indicated by low, smooth, narrow parasutural ridges. Tabulation I pr, 4", 6", 6c, 7, 6""", 1p, 1""""; L-type ventral organisation, gonyaulacoid. Cingulum laevorotatory with ventral offset of one cingulum width. Archaeopyle apical, type tA. The apical margin is markedly zig-zag and the operculum free.
Dimensions: Length: 32-45 µm, breadth: 34-51 µm.