Aldorfia dictyota ssp. osmingtonensis, (Gitmez, 1970), Jan du Chêne et al., 1986

Tax. jr syn. of Scriniocassis weberi Gocht, 1964, according to Davies, 1983. Jan du Chêne et al., 1986, retained Aldorfia dictyota subsp. osmingtonensis as a separate taxon. Lentin and Williams, 1989, 1993, retainined this taxon as a subspecies of Aldorfia dictyota.

Holotype: Gitmez, 1970, pl.8, fig.12; Jan du Chêne et al., 1986, p.7, figs.10-11
Locus typicus: W of Osmington Mills, Dorset, England
Stratum typicum: Early Kimmeridgian

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description as Scriniodinium dictyotum ssp. osmingtonense: [Gitmez, 1970, p. 311]:

Diagnosis:
Scriniodinium dictyotum without any prominence at the apex.

Description:
The shell is broadly ovate with an endoblast. There is no apical horn. Periblast irregularly reticulate. The cingulum is circular and equatorial. A large precingular archaeopyle is present on the dorsal side. 9 specimens were observed in the materials from Dorset with these structures.

Dimensions:
Holotype: overall length 90 µm, breadth 82 µm; endoblast length 80 µm, breadth 70 µm.
Range of the other specimens (6 specimens measured): overall length 75-90 µm, breadth 75-82 µm.