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Hemicystodinium taugourdeaui
Hemicystodinium? taugourdeaui (Varma and Dangwal, 1964, p.68, pl.2, fig.9) Sarjeant and Stover, 1978, p.51.
Originally Tenua Eisenack, subsequently Hemicystodinium?, thirdly Batiacasphaera. Questionable assignment: Sarjeant and Stover (1978, p.51).
Taxonomic senior synonym: Polysphaeridium subtile, according to Lentin and Williams (1993, p.275).
Taxonomic senior synonym: Hystrichosphaeridium (now Polysphaeridium) zoharyi, according to Lentin and Williams (1981, p.26,127) — however, Tenua taugourdeaui is now considered a taxonomic junior synonym of Polysphaeridium subtile.
Holotype: Varma and Dangwal, 1964, pl.2, fig.9
Locus typicus: Western India, Cambay Basin, C.D.W. no. 9. 1475-80 m
Stratum typicum: Eocene-Oligocene
Original diagnosis: Varma and Dangwal, 1964, p.68: Tenua taugourdeaui
Body originally spherical to oblong, incomplete due to the breakage of the pole cap. Body wall prominently granulate, sometimes weak, fairly thick, about 2.5Á in the specimen illustrated. Processes arise from all over the body rather sparsely, start with a somewhat broad base and extend outwards as hollow structures of uniform thickness or narrow towards the tip in the form of fingers or bluntly ending spines. The tips are occasionally broken, but, when preserved, they are closed and some times also show slight (?) overgrowth hanging downwards. Processes mostly stiff, rarely supple.
Measurements: Diameter of body ca. 55x50 µm; length of processes ca. 7.8 µm.
Affinities:
Varma and Dangwal, 1964, p.68: Tenua taugourdeaui
The pole cap is often missing from the body, as seen in the figure illustrated, a feature of T. hystrix Eisenack, but the present species differs from T. hystrix in having a smaller body and in the shape of the spinelike processes, which are also more sparsely studded.
Originally Tenua Eisenack, subsequently Hemicystodinium?, thirdly Batiacasphaera. Questionable assignment: Sarjeant and Stover (1978, p.51).
Taxonomic senior synonym: Polysphaeridium subtile, according to Lentin and Williams (1993, p.275).
Taxonomic senior synonym: Hystrichosphaeridium (now Polysphaeridium) zoharyi, according to Lentin and Williams (1981, p.26,127) — however, Tenua taugourdeaui is now considered a taxonomic junior synonym of Polysphaeridium subtile.
Holotype: Varma and Dangwal, 1964, pl.2, fig.9
Locus typicus: Western India, Cambay Basin, C.D.W. no. 9. 1475-80 m
Stratum typicum: Eocene-Oligocene
Original diagnosis: Varma and Dangwal, 1964, p.68: Tenua taugourdeaui
Body originally spherical to oblong, incomplete due to the breakage of the pole cap. Body wall prominently granulate, sometimes weak, fairly thick, about 2.5Á in the specimen illustrated. Processes arise from all over the body rather sparsely, start with a somewhat broad base and extend outwards as hollow structures of uniform thickness or narrow towards the tip in the form of fingers or bluntly ending spines. The tips are occasionally broken, but, when preserved, they are closed and some times also show slight (?) overgrowth hanging downwards. Processes mostly stiff, rarely supple.
Measurements: Diameter of body ca. 55x50 µm; length of processes ca. 7.8 µm.
Affinities:
Varma and Dangwal, 1964, p.68: Tenua taugourdeaui
The pole cap is often missing from the body, as seen in the figure illustrated, a feature of T. hystrix Eisenack, but the present species differs from T. hystrix in having a smaller body and in the shape of the spinelike processes, which are also more sparsely studded.