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Leptodinium gitmezae
Leptodinium gitmezae Sarjeant, 1985
Holotype: Gitmez and Sarjeant, 1972, pl.5, figs.1-2, text-fig.17; Sarjeant, 1985, pl.4, figs.1-2; Jan du Chêne et al., 1986, pl.150, figs.1-6
Locus typicus: Warlingham, Surrey, England
Stratum typicum: Eudoxus Zone, Early Kimmeridgian
Original diagnosis: Sarjeant, 1985, 62
Proximate, acavate, holotabulate cysts of moderately large size, with epitract and hypotract of almost equal size and shape. Surface of phragma coarsely granular; other intratabular ornamentation lacking. Low, narrow crests mark the paratabulation 0pr, 4", 6", 6c, 6""", 1p, 1pv, 1"""". Paraplate 4" is large and almost quadrate, having a long boundary with a very small, quadrate 6"; the crest dividing these paraplates intersects the sulcus at, or slightly posterior to, the boundary of the sulcus with 1". Paraplates 1""" and 1p are small and narrow; 1pv is much larger, whereas 1"""" is relatively small. The sulcus is narrow and confined to the central half of the ventral surface; the cingulum is broader, laevorotatory, with ends differing in anteroposterior position by 1 1/2 times its width. Archaeopyle (when developed) single-plate precingular, formed by loss of paraplate 3".
Dimensions: Holotype: overall length 85 Ám, breadth 71 Ám. Range of dimensions: overall length 60--95 Ám, breadth 52--90 Ám. Sixteen specimens measured.
Holotype: Gitmez and Sarjeant, 1972, pl.5, figs.1-2, text-fig.17; Sarjeant, 1985, pl.4, figs.1-2; Jan du Chêne et al., 1986, pl.150, figs.1-6
Locus typicus: Warlingham, Surrey, England
Stratum typicum: Eudoxus Zone, Early Kimmeridgian
Original diagnosis: Sarjeant, 1985, 62
Proximate, acavate, holotabulate cysts of moderately large size, with epitract and hypotract of almost equal size and shape. Surface of phragma coarsely granular; other intratabular ornamentation lacking. Low, narrow crests mark the paratabulation 0pr, 4", 6", 6c, 6""", 1p, 1pv, 1"""". Paraplate 4" is large and almost quadrate, having a long boundary with a very small, quadrate 6"; the crest dividing these paraplates intersects the sulcus at, or slightly posterior to, the boundary of the sulcus with 1". Paraplates 1""" and 1p are small and narrow; 1pv is much larger, whereas 1"""" is relatively small. The sulcus is narrow and confined to the central half of the ventral surface; the cingulum is broader, laevorotatory, with ends differing in anteroposterior position by 1 1/2 times its width. Archaeopyle (when developed) single-plate precingular, formed by loss of paraplate 3".
Dimensions: Holotype: overall length 85 Ám, breadth 71 Ám. Range of dimensions: overall length 60--95 Ám, breadth 52--90 Ám. Sixteen specimens measured.