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Hemisphaeridium fenestratum
Hemisphaeridium fenestratum Bujak in Bujak et al., 1980
Holotype: Bujak in Bujak et al., 1980, pl.15, fig.7
Paratype: Bujak in Bujak et al., 1980, pl.15, fig.8-9
Locus typicus: Whitecliff Bay, Isle of Whight, England
Stratum typicum: Late Eocene
Origial diagnosis: Bujak in Bujak et al., 1980, p. 56
Chorate cysts with an ovoidal to ellipsoidal central body that is longer than broad.
Periphragm smooth to chagrinate. Numerous processes are arranged in process complexes. Process complexes annulate or soleate with four to nine processes on the apical, precingular, postcingular, antapical, posterior intercalary, and posterior sulcal paraplates; additional processes are sometimes present within the complexes. The paracingular process complexes are linear, with two or three processes in each complex. The processes are slender, tubiform and distally open, expanded, and aculeate, the aculei of processes within a complex joining to form a reticulate network reflecting the paraplate shape. Paratabulation 4", 6", 6c, 6""", Ip, 1"""", Ip.s., with process complexes on all of the paraplates.
Archaeopyle epicystal, formed by the detachment of the apical and precingular paraplates. Dimensions. Central body length = 45-47 Ám, breadth = 27-41 Ám. Maximum process length = 11-19 Ám.
Holotype: Bujak in Bujak et al., 1980, pl.15, fig.7
Paratype: Bujak in Bujak et al., 1980, pl.15, fig.8-9
Locus typicus: Whitecliff Bay, Isle of Whight, England
Stratum typicum: Late Eocene
Origial diagnosis: Bujak in Bujak et al., 1980, p. 56
Chorate cysts with an ovoidal to ellipsoidal central body that is longer than broad.
Periphragm smooth to chagrinate. Numerous processes are arranged in process complexes. Process complexes annulate or soleate with four to nine processes on the apical, precingular, postcingular, antapical, posterior intercalary, and posterior sulcal paraplates; additional processes are sometimes present within the complexes. The paracingular process complexes are linear, with two or three processes in each complex. The processes are slender, tubiform and distally open, expanded, and aculeate, the aculei of processes within a complex joining to form a reticulate network reflecting the paraplate shape. Paratabulation 4", 6", 6c, 6""", Ip, 1"""", Ip.s., with process complexes on all of the paraplates.
Archaeopyle epicystal, formed by the detachment of the apical and precingular paraplates. Dimensions. Central body length = 45-47 Ám, breadth = 27-41 Ám. Maximum process length = 11-19 Ám.