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Homotryblium variabile
Homotryblium variabile Bujak in Bujak et al., 1980
Holotype: Bujak et al., 1980, pl.16, figs.4-5
Paratype: Bujak et al., 1980, pl.16, figs. 6-9
Locus typicus: Hampshire, southern England
Stratum typicum: Middle Eocene
Original diagnosis: Bujak in Bujak et al., 1980, p. 64
Chorate cysts with a subspherical to ovoidal central body, a coarsely granulate or occasionally reticulate endophragm and a thinner, smooth periphragm which forms the processes. Apical, precingular, postcingular, posterior intercalary, posterior sulcal and antapical processes intratabular, one per paraplate, broad and cylindrical, tapering or flared, distally entire or serrate, and either closed or with a restricted opening. Cingular processes mostly slender, sometimes taeniate. Small acuminate spines are often present on the cingular and sulcal paraplates. Paratabulation 4", 6", 6c, 6""", Ip, 1"""", p.s., with processes sometimes absent from paraplates 1", 3", 6", 3""", 6""", Ip and some or all of the cingular paraplates. The shapes and relationships of the epicystal paraplates are consistent with those of Homotryblium, as illustrated by Evitt (1967, pl. 9, figs. 7-14, as Forma AC). Archaeopyle epicystal, formed by the detachment of paraplates 1"-4" and 1"-6".
Dimensions. Central body length = 39-55 Ám, breadth = 35-50 Ám, thickness = 24-26 Ám. Maximum process length = 11-24 Ám, breadth = 9-20 Ám.
Holotype: Bujak et al., 1980, pl.16, figs.4-5
Paratype: Bujak et al., 1980, pl.16, figs. 6-9
Locus typicus: Hampshire, southern England
Stratum typicum: Middle Eocene
Original diagnosis: Bujak in Bujak et al., 1980, p. 64
Chorate cysts with a subspherical to ovoidal central body, a coarsely granulate or occasionally reticulate endophragm and a thinner, smooth periphragm which forms the processes. Apical, precingular, postcingular, posterior intercalary, posterior sulcal and antapical processes intratabular, one per paraplate, broad and cylindrical, tapering or flared, distally entire or serrate, and either closed or with a restricted opening. Cingular processes mostly slender, sometimes taeniate. Small acuminate spines are often present on the cingular and sulcal paraplates. Paratabulation 4", 6", 6c, 6""", Ip, 1"""", p.s., with processes sometimes absent from paraplates 1", 3", 6", 3""", 6""", Ip and some or all of the cingular paraplates. The shapes and relationships of the epicystal paraplates are consistent with those of Homotryblium, as illustrated by Evitt (1967, pl. 9, figs. 7-14, as Forma AC). Archaeopyle epicystal, formed by the detachment of paraplates 1"-4" and 1"-6".
Dimensions. Central body length = 39-55 Ám, breadth = 35-50 Ám, thickness = 24-26 Ám. Maximum process length = 11-24 Ám, breadth = 9-20 Ám.