Back
Rhaetogonyaulax rhaetica ssp. rhaetica
From Fensome et al., 2019:
Rhaetogonyaulax rhaetica ssp. rhaetica Autonym. Holotype: Sarjeant, 1963b, text-figs.1–2 (left).
---------------------------------------------------------------------------------------------------
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).
Rhaetogonyaulax rhaetica ssp. rhaetica Autonym. Holotype: Sarjeant, 1963b, text-figs.1–2 (left).
---------------------------------------------------------------------------------------------------
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).