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Cyclonephelium exuberans
From Fensome et al., 2019:
Cyclonephelium exuberans Deflandre and Cookson, 1955, p.285 ex Eaton, 1976, p.255.
Emendation: Sarjeant, 1986, p.29–31, as Glaphyrocysta exuberans. Holotype: Pastiels, 1948, pl.5, figs.11,13, as Membranilarnax pterospermoides, designated by Eaton (1976, p.255); lost according to Sarjeant (1986, p.30).
Neotype: Eaton, 1976, pl.8, fig.2, designated by Sarjeant (1986, p.30).
NOW Glaphyrocysta. Originally Cyclonephelium, subsequently (and now) Glaphyrocysta.
Name not validly published in Deflandre and Cookson (1955, p.285) since these authors did not provide a description or a direct reference to one (as required after 1952 by ICBN Article 32.3).
Name not validly published in Williams and Downie (1966c, p.225) since holotype not designated
Age: Late Cretaceous.
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Diagnosis: Eaton, 1976, p. 255
Cyst body dorsoventrally flattened with a smooth or finely granular surface. The circular or subcircular outline may be modified by the development of one or two antapical proturbances. Processes restricted to the peripheral zone of the cyst body; variable in breadth and simple or branched, distally complexly united by traberculae and areas of variably fenestrate membrane. No processes developed on reflected precingular plates 3"" and 6"". Archaeopyle apical, tetratabular.
Cyclonephelium exuberans Deflandre and Cookson, 1955, p.285 ex Eaton, 1976, p.255.
Emendation: Sarjeant, 1986, p.29–31, as Glaphyrocysta exuberans. Holotype: Pastiels, 1948, pl.5, figs.11,13, as Membranilarnax pterospermoides, designated by Eaton (1976, p.255); lost according to Sarjeant (1986, p.30).
Neotype: Eaton, 1976, pl.8, fig.2, designated by Sarjeant (1986, p.30).
NOW Glaphyrocysta. Originally Cyclonephelium, subsequently (and now) Glaphyrocysta.
Name not validly published in Deflandre and Cookson (1955, p.285) since these authors did not provide a description or a direct reference to one (as required after 1952 by ICBN Article 32.3).
Name not validly published in Williams and Downie (1966c, p.225) since holotype not designated
Age: Late Cretaceous.
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Diagnosis: Eaton, 1976, p. 255
Cyst body dorsoventrally flattened with a smooth or finely granular surface. The circular or subcircular outline may be modified by the development of one or two antapical proturbances. Processes restricted to the peripheral zone of the cyst body; variable in breadth and simple or branched, distally complexly united by traberculae and areas of variably fenestrate membrane. No processes developed on reflected precingular plates 3"" and 6"". Archaeopyle apical, tetratabular.