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Hystrichosphaeridium heteracanthum ssp. sparsiprocessum
Hystrichosphaeridium heteracanthum subsp. sparsiprocessum Varma and Dangwal, 1964
Now Heterosphaeridium? heteracanthum ssp. sparsiprocessum. Originally Hystrichosphaeridium heteracanthum ssp. sparsiprocessum, subsequently Heterosphaeridium heteracanthum ssp. sparsiprocessum, thirdly (and now) Heterosphaeridium? heteracanthum ssp. sparsiprocessum.
Holotype: Varma and Dangwal, 1964, pl.1, fig.7
Locus typicus: W India, Cambay Basin, C.D.W. no. 2
Stratum typicum: Eocene-Oligocene
Original diagnosis: Varma and Dangwal, 1964, p.64
Body spherical to hemispherical, brown and densely granulate. Body wall thin but clearly observed. Processes occurring singlv and sparsely studded all over the body. Each process is stiff, usually unbranched, hollow, with tip ending abruptly. Tip part not observed in most cases, probably due to secondary breakage. Sometimes two or more processes appear to coalesce at the base but dissociate near the tip, giving a falsely furcate appearance.
Measurements: Diameter of body ca. 39-65 µm; length of processes ca. 15-20 µm.
Affinities:
Varma and Dangwal, 1964, p.64: The fossil is closely similar to H. heteracanthum Deflandre and Cookson, but the detailed differences, along with the sparsity of the processes, show it to be a distinct subspecies.
Now Heterosphaeridium? heteracanthum ssp. sparsiprocessum. Originally Hystrichosphaeridium heteracanthum ssp. sparsiprocessum, subsequently Heterosphaeridium heteracanthum ssp. sparsiprocessum, thirdly (and now) Heterosphaeridium? heteracanthum ssp. sparsiprocessum.
Holotype: Varma and Dangwal, 1964, pl.1, fig.7
Locus typicus: W India, Cambay Basin, C.D.W. no. 2
Stratum typicum: Eocene-Oligocene
Original diagnosis: Varma and Dangwal, 1964, p.64
Body spherical to hemispherical, brown and densely granulate. Body wall thin but clearly observed. Processes occurring singlv and sparsely studded all over the body. Each process is stiff, usually unbranched, hollow, with tip ending abruptly. Tip part not observed in most cases, probably due to secondary breakage. Sometimes two or more processes appear to coalesce at the base but dissociate near the tip, giving a falsely furcate appearance.
Measurements: Diameter of body ca. 39-65 µm; length of processes ca. 15-20 µm.
Affinities:
Varma and Dangwal, 1964, p.64: The fossil is closely similar to H. heteracanthum Deflandre and Cookson, but the detailed differences, along with the sparsity of the processes, show it to be a distinct subspecies.