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Dapsilidinium amalthei
From Fensome et al., 2019:
Dapsilidinium? amalthei (Wetzel, 1966, p.317, pl.31, figs.2,2a–b) Lentin and Williams, 1981, p.68. Holotype: Wetzel, 1966, pl.31, figs.2,2a. Originally Hystrichosphaeridium, subsequently Polysphaeridium, thirdly Polysphaeridium?, fourthly (and now) Dapsilidinium?. Questionable assignment: Lentin and Williams (1981, p.68). Age: late Toarcian.
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Original description: [Wetzel, 1966] (translated from German):
Hystrichosphaeridium amalthei n. sp.
Pl. 31, Fig. 2, 2a, 2b
Diagnosis: Spherical, thin-walled capsule with a diameter of 30 μm. The 11 μm long, slender processes are hollow and distally open. They taper gradually but have a slight expansion at the outermost end. They occupy the capsule in moderate density.
The holotype (Fig. 2, 2a) is in specimen Banz 7.
A second specimen in specimen Banz 5 has a capsule diameter of 34 μm, but only 8 μm long processes
Comparison: The process type is reminiscent of Hy. colligerum DEFL-COOKS. 1955 from the Australian Lower Eocene, but our specimens lack the bladder-shaped main process.
Dapsilidinium? amalthei (Wetzel, 1966, p.317, pl.31, figs.2,2a–b) Lentin and Williams, 1981, p.68. Holotype: Wetzel, 1966, pl.31, figs.2,2a. Originally Hystrichosphaeridium, subsequently Polysphaeridium, thirdly Polysphaeridium?, fourthly (and now) Dapsilidinium?. Questionable assignment: Lentin and Williams (1981, p.68). Age: late Toarcian.
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Original description: [Wetzel, 1966] (translated from German):
Hystrichosphaeridium amalthei n. sp.
Pl. 31, Fig. 2, 2a, 2b
Diagnosis: Spherical, thin-walled capsule with a diameter of 30 μm. The 11 μm long, slender processes are hollow and distally open. They taper gradually but have a slight expansion at the outermost end. They occupy the capsule in moderate density.
The holotype (Fig. 2, 2a) is in specimen Banz 7.
A second specimen in specimen Banz 5 has a capsule diameter of 34 μm, but only 8 μm long processes
Comparison: The process type is reminiscent of Hy. colligerum DEFL-COOKS. 1955 from the Australian Lower Eocene, but our specimens lack the bladder-shaped main process.