Subtilisphaera scabrata Jain and Millepied, 1973

Holotype: Jain and Millepied 1973: Pl. 3, Fig. 39
Locus typicus: Rore Hole No. BR-I, Senegal, N.W. Africa.
Stratum typicum: Aptian.
Age: Aptian

Original diagnosis: Jain and Millepied 1973, p. 28
Cavate cyst, spindle in shape, biconical or pentagonal. Periphragm thin, divided equally into epitract and hypotract by a cingulum, extending apically, forming an apical and an antapical well developed horn, third completely absent or present as slight projection. Surface granuloscabrate. Capsule circular, endophragm smooth, pericoel complete around capsule. Archaeopyle absent.

Dimensions Holotype: Shell-length 60µ, breadth 50µ; Capsule-length 40µ, breadth 40µ; Apical horn-length 12µ, breadth 12µ; Antapical horn-length 4µ, breadth 4µ. Observed range: Shell length 50-70µ, breadth 40-55µ; Capsule-diameter 40-45µ; Apical horn-length 10-15µ, breadth 10-20µ. Antapical horn-length 10-15µ, breadth

Comparison: S. scabrata sp. nov. differs from the type species in its latger size distinct pericoel and granuloscabrate periphragm surface.

Remarks: The difference in endophragm thickness seen in some specimen may be the result of preservation.