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Aldorfia dictyota
From Fensome et al., 2019:
Aldorfia dictyota, (Cookson and Eisenack, 1960b, p.248–249, pl.37, figs.8–9) Davey, 1982b, p.25.
Holotype: Cookson and Eisenack, 1960b, pl.37, fig.9; Jan du Chêne et al., 1986a, pl.5, fig.1; pl.7, fig.6.
NOW Scriniodinium.
Originally (and now) Scriniodinium, subsequently Scriniocassis, thirdly Aldorfia.
Age: Oxfordian–Tithonian.
Locus typicus: Alexander Formation, W.Australia
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Original description as Scriniodinium dictyotum: [Cookson and Eisenack, 1960, p. 248]:
Description:
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 considerably 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.
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Notes:
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Aldorfia dictyota (Cookson and Eisenack, 1960b) Davey, 1982b, has a relatively broad cingulum. Pericyst prolonged into short, blunt apical horn. Endocyst with small apical bulge. Endocyst bears numerous, thin perpendicular ledges, which form a small-meshed supporting reticulum for the thin outer membrane. The lumina of the reticulum vary considerably in diameter.
Size: length 109 µm, breadth 95 µm
Aldorfia dictyota, (Cookson and Eisenack, 1960b, p.248–249, pl.37, figs.8–9) Davey, 1982b, p.25.
Holotype: Cookson and Eisenack, 1960b, pl.37, fig.9; Jan du Chêne et al., 1986a, pl.5, fig.1; pl.7, fig.6.
NOW Scriniodinium.
Originally (and now) Scriniodinium, subsequently Scriniocassis, thirdly Aldorfia.
Age: Oxfordian–Tithonian.
Locus typicus: Alexander Formation, W.Australia
---------------------------------------------------------------------------------------------------
Original description as Scriniodinium dictyotum: [Cookson and Eisenack, 1960, p. 248]:
Description:
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 considerably 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.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Notes:
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Aldorfia dictyota (Cookson and Eisenack, 1960b) Davey, 1982b, has a relatively broad cingulum. Pericyst prolonged into short, blunt apical horn. Endocyst with small apical bulge. Endocyst bears numerous, thin perpendicular ledges, which form a small-meshed supporting reticulum for the thin outer membrane. The lumina of the reticulum vary considerably in diameter.
Size: length 109 µm, breadth 95 µm