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Rhaetogonyaulax rhaetica ssp. rhaetica
Rhaetogonyaulax rhaetica ssp. rhaetica
Autonym.
Holotype: Sarjeant, 1963, text-fig.1-2(left); Harland et al., 1975, pl.110, fig.3-6
Locus typicus: Stowell Park Borehole, Northleach, Gloucestershire, England
Stratum typicum: Late Triassic
Translation Below, 1987: LPP
Original description: Sarjeant 1963, p. 353: Gonyaulax rhaetica
Diagnosis: a species of Gonyaulax having a spindle-shaped shell, with a cover of coarse granules or very short spines, absent from the furrows. Transverse furrow broad, laevorotatory; longitudinal furrow narrow on the epi- theca but broadening considerably as it approaches the antapex. Low ridges outline the following tabulation - four apical plates (1-4"), with plate 1" elongate and situated in the anterior prolongation of the longitudinal furrow; one anterior intercalary plate (1a); six pre-equatorial plates (1-6""); six post-equatorial plates (1-6"""), plates 1""" and 2""" being reduced and quadrate; one posterior intercalary plate (1p); and one antapical plate.
Dimensions of holotype: Length 65 µm, Breath 40 µm. Estimated range (based on complete specimens and probable original size of incomplete specimens).
Autonym.
Holotype: Sarjeant, 1963, text-fig.1-2(left); Harland et al., 1975, pl.110, fig.3-6
Locus typicus: Stowell Park Borehole, Northleach, Gloucestershire, England
Stratum typicum: Late Triassic
Translation Below, 1987: LPP
Original description: Sarjeant 1963, p. 353: Gonyaulax rhaetica
Diagnosis: a species of Gonyaulax having a spindle-shaped shell, with a cover of coarse granules or very short spines, absent from the furrows. Transverse furrow broad, laevorotatory; longitudinal furrow narrow on the epi- theca but broadening considerably as it approaches the antapex. Low ridges outline the following tabulation - four apical plates (1-4"), with plate 1" elongate and situated in the anterior prolongation of the longitudinal furrow; one anterior intercalary plate (1a); six pre-equatorial plates (1-6""); six post-equatorial plates (1-6"""), plates 1""" and 2""" being reduced and quadrate; one posterior intercalary plate (1p); and one antapical plate.
Dimensions of holotype: Length 65 µm, Breath 40 µm. Estimated range (based on complete specimens and probable original size of incomplete specimens).