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Tenua colligata
Tenua colligata Morgan, 1980
Now Epelidosphaeridia. Originally Tenua Eisenack, 1958, subsequently (and now) Epelidosphaeridia.
Holotype: Morgan, 1980, pl.29, figs.6-8
Locus typicus: Santos Oodnadatta, Australia
Stratum typicum: Aptian-Albian
Original description: Morgan, 1980, p. 32
Cyst ambitus broadly elliptical; endophragm rigid, psilate, and ellipsoidal; periphragm granular, drawn up into very many short hollow processes; wall layers loosely appressed, separated beneath group of processes; periphragm processes short, 7-10 µm long and 1.5-2 µm broad, distally dosed and square-ended, proximally expanded so that three or four adjacent processes arise from the same small area of wall separation; paracingulum and parasulcus marked by a zone 6-8 µm broad devoid of processes, cingulum slightly offset at sulcus; processes otherwise non-tabular; archeopyle apical, accessory archeopyle sutures indicate six precingular plates and a sulcal notch indicating gonyaulacean tabulation; operculum free.
Now Epelidosphaeridia. Originally Tenua Eisenack, 1958, subsequently (and now) Epelidosphaeridia.
Holotype: Morgan, 1980, pl.29, figs.6-8
Locus typicus: Santos Oodnadatta, Australia
Stratum typicum: Aptian-Albian
Original description: Morgan, 1980, p. 32
Cyst ambitus broadly elliptical; endophragm rigid, psilate, and ellipsoidal; periphragm granular, drawn up into very many short hollow processes; wall layers loosely appressed, separated beneath group of processes; periphragm processes short, 7-10 µm long and 1.5-2 µm broad, distally dosed and square-ended, proximally expanded so that three or four adjacent processes arise from the same small area of wall separation; paracingulum and parasulcus marked by a zone 6-8 µm broad devoid of processes, cingulum slightly offset at sulcus; processes otherwise non-tabular; archeopyle apical, accessory archeopyle sutures indicate six precingular plates and a sulcal notch indicating gonyaulacean tabulation; operculum free.