Cordosphaeridium senegalense Jain and Millepied, 1975

Originally (and now) Cordosphaeridium, subsequently Tityrosphaeridium?.
Sarjeant, 1981, provisionally transferred this species to Tityrosphaeridium Sarjeant, 1981; however, Lentin and Williams, 1985, retained it in Cordosphaeridium.
Holotype: Jain and Millepied, 1975, pl.5, fig.68
Age: Campanian-Maastrichtian


Original description: Jan du Chêne, 1988, p. 155
Cyst circular to elliptical in outline, its surface densely ornamented with granulae of irregular shape, distributed over the entire surface. The paratabulation is only indicated by the position of the apical archaeopyle, Type (tA), and by secondary sutures of the archaeopyle, observable between some precingular paraplates.
Dimensions: equatorial diameter of cyst: 30-40 µm; cyst length: 32-38 µm (5 specimens measured).

Affinities:
Jan du Chêne, 1988, p. 155
The Escharisphaeridia species already known, E. pockocki (Sarjeant, 1968) Erkmen and Sarjeant, 1980, E. rudis Davies, 1983, and E. psilata Kumar, 1986, are Jurassic in age.
E. senegalense differs from these species in its small size and its coarsely granulous ornamentation.