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Hystrichosphaeridium asterigerum
Hystrichosphaeridium asterigerum Gocht, 1959
Now Oligosphaeridium?. Originally Hystrichosphaeridium, subsequently (and now) Oligosphaeridium?.
Taxonomic junior synonym: Hystrichosphaeridium (as Oligosphaeridium) vasiformum, according to Duxbury (1977, p.45) — however, McIntyre and Brideaux (1980, p.21) retained Hystrichosphaeridium (as Oligosphaeridium) vasiformum.
Holotype: Gocht, 1959, pl.3, fig.1
Locus typicus: Ruehlertwist, Emsland, NW Germany
Stratum typicum: Hauterivian
Translation Gocht, 1959: LPP
Original description: Gocht, 1959, p. 67
Diagnosis: Central body spherical, bearing 12 to 18 slender, tubiform appendices. Tubes distally hardly widened, often even slightly narrowed; at their extremes suddenly split into 3 to 6 long thin spines, which mostly stand spread at right angless to the axis-channel. Smaller, irregular processes may occur subsidiary. membrane always delicate and transparent.
Dimensions: Holotype: Main body at most 51 µm, proceses without spines 21 to 15 µm, spines 10-17 µm. Largest total diameter about 116 µm. Other specimens between 83 and 154 µm largest total diameter (generally around 115 µm).
Now Oligosphaeridium?. Originally Hystrichosphaeridium, subsequently (and now) Oligosphaeridium?.
Taxonomic junior synonym: Hystrichosphaeridium (as Oligosphaeridium) vasiformum, according to Duxbury (1977, p.45) — however, McIntyre and Brideaux (1980, p.21) retained Hystrichosphaeridium (as Oligosphaeridium) vasiformum.
Holotype: Gocht, 1959, pl.3, fig.1
Locus typicus: Ruehlertwist, Emsland, NW Germany
Stratum typicum: Hauterivian
Translation Gocht, 1959: LPP
Original description: Gocht, 1959, p. 67
Diagnosis: Central body spherical, bearing 12 to 18 slender, tubiform appendices. Tubes distally hardly widened, often even slightly narrowed; at their extremes suddenly split into 3 to 6 long thin spines, which mostly stand spread at right angless to the axis-channel. Smaller, irregular processes may occur subsidiary. membrane always delicate and transparent.
Dimensions: Holotype: Main body at most 51 µm, proceses without spines 21 to 15 µm, spines 10-17 µm. Largest total diameter about 116 µm. Other specimens between 83 and 154 µm largest total diameter (generally around 115 µm).