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Scriniocassis dictyotus ssp. dictyotus
Scriniocrassis dictyota ssp. dictyota
Autonym.
NOW Scriniodinium dictyotum subsp. dictyotum. Originally (and now) Scriniodinium dictyotum subsp. dictyotum, subsequently Scriniocassis dictyota subsp. dictyota, thirdly Aldorfia dictyota subsp. dictyota.
Holotype: Cookson and Eisenack, 1960, pl.37, fig.9
Paratype: Cookson and Eisenack, 1960, pl. 37, fig. 8
Locus typicus: Alexander Formation, W.A
Stratum typicum: Oxfordian to Tithonian
Original description: Cookson and Eisenack, 1960, p. 248-249: Scriniodinium dictyotum
Shell flat, oval, divided by a +/- distinct and relatively broad girdle into an epitheca and hypotheca of approximately equal size; epitheca prolonged into a broadly based, short, blunt apical projection. Capsule oval with a short apical prominence. The wall of the capsule bears numerous thin perpendicular ledges which form a small-meshed supporting reticulum for the thin outer membrane. The meshes of the reticulum vary considerab]y in size and are usually widest towards the periphery. The pylome is broadly hoof-shaped and reaches the girdle. Dimensions: holotype--109 µm long, 95 µm broad, capsule 95X83 µm. Range 109-135x92-112 µm.
Autonym.
NOW Scriniodinium dictyotum subsp. dictyotum. Originally (and now) Scriniodinium dictyotum subsp. dictyotum, subsequently Scriniocassis dictyota subsp. dictyota, thirdly Aldorfia dictyota subsp. dictyota.
Holotype: Cookson and Eisenack, 1960, pl.37, fig.9
Paratype: Cookson and Eisenack, 1960, pl. 37, fig. 8
Locus typicus: Alexander Formation, W.A
Stratum typicum: Oxfordian to Tithonian
Original description: Cookson and Eisenack, 1960, p. 248-249: Scriniodinium dictyotum
Shell flat, oval, divided by a +/- distinct and relatively broad girdle into an epitheca and hypotheca of approximately equal size; epitheca prolonged into a broadly based, short, blunt apical projection. Capsule oval with a short apical prominence. The wall of the capsule bears numerous thin perpendicular ledges which form a small-meshed supporting reticulum for the thin outer membrane. The meshes of the reticulum vary considerab]y in size and are usually widest towards the periphery. The pylome is broadly hoof-shaped and reaches the girdle. Dimensions: holotype--109 µm long, 95 µm broad, capsule 95X83 µm. Range 109-135x92-112 µm.