Ascodinium acrophorum, Cookson and Eisenack, 1960

Holotype: Cookson and Eisenack, 1960, pl.1, fig.19
Locus typicus: Metropolitan area, Perth Basin, Western Australia
Stratum typicum: Late Albian-Cenomanian

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Original description: [Cookson and Eisenack, 1960, p. 5]:

Description:
Shell flat, oval to almost circular in outline, with a short, blunt apical horn and a short, pointed antapical horn situated on one side of the middle line. A rather broad girdle is clearly indicated laterally and slightly in from the margins on both surfaces. Capsule nearly spherical, sometimes slightly pointed. Shell membrane smooth except along the flatter side of the antapex, where it is faintly serrated. Wall of capsule finely granular.

Dimensions:
Holotype: 72 µm long; 57 µm broad; capsule 41x41 µm.
Range: 62-76 µm long; 51-56 µm broad.