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Archeotectatum sarjeantii
From Fensome et al., 2019:
Archeotectatum sarjeantii Habib, 1972, p.376, pl.5, figs.3–4. Holotype: Habib, 1972, pl.5, fig.3; Fensome et al., 1995, fig.1 — p.1763. Originally (and now) Archeotectatum, subsequently Apteodinium. Lentin and Williams (1981, p.16)
retained this species in Archeotectatum. Age: Oxfordian–Kimmeridgian.
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Original description: [Habib, 1972, p. 376]:
Description:
Untabulated proximate cysts. Polygonal in lateral view with broadly rounded apical horn and two closely set well-rounded antapical horns; cyst is widest in cingular region, although a distinctive cingulum is not established. Wall is thick and spongy.
Precingular archeopyle is large and pentagonal, suggesting in the theca the existence of apical and precingular tabulation. Ornamentation densely granulate.
Range is maximum size of nine measured specimens from 40 to 48 µm.
Archeotectatum sarjeantii Habib, 1972, p.376, pl.5, figs.3–4. Holotype: Habib, 1972, pl.5, fig.3; Fensome et al., 1995, fig.1 — p.1763. Originally (and now) Archeotectatum, subsequently Apteodinium. Lentin and Williams (1981, p.16)
retained this species in Archeotectatum. Age: Oxfordian–Kimmeridgian.
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Original description: [Habib, 1972, p. 376]:
Description:
Untabulated proximate cysts. Polygonal in lateral view with broadly rounded apical horn and two closely set well-rounded antapical horns; cyst is widest in cingular region, although a distinctive cingulum is not established. Wall is thick and spongy.
Precingular archeopyle is large and pentagonal, suggesting in the theca the existence of apical and precingular tabulation. Ornamentation densely granulate.
Range is maximum size of nine measured specimens from 40 to 48 µm.