Back
Polysphaeridium marsupium
Polysphaeridium"?marsupium" (Tasch in Tasch et al., 1964, p.193, pl.3, fig.16) Davey and Williams, 1969, p.6.
Holotype: Tasch et al., 1964, pl.3, fig.16. Originally Hystrichosphaeridium, subsequently Polysphaeridium?. Questionable assignment: Davey and Williams (1969, p.6). Taxonomic senior synonym: Hystrichosphaeridium (as and now Kiokansium) unituberculatum, according to Stover and Evitt (1978, p.76). This combination, as a questionable assignment, was not validly published in Davey and Williams (1966b, p.95), since these authors did not fully reference the basionym. Age: Albian.
Original diagnosis: Tasch, 1964, p.193: Hystrichosphaeridium marsupium
Pouch-shaped capsule bearing thin, elongate, tubular processes, bifurcate or falt-ended at terminations; body processes occur in clusters; peripheral processes occur as singles.
Dimensions: Holotype: Length 40 µm; width 28 µm; length of processes 8-10 µm; thickness of processes 1 µm; density of processes 1 per 5 µm of edge.
Holotype: Tasch et al., 1964, pl.3, fig.16. Originally Hystrichosphaeridium, subsequently Polysphaeridium?. Questionable assignment: Davey and Williams (1969, p.6). Taxonomic senior synonym: Hystrichosphaeridium (as and now Kiokansium) unituberculatum, according to Stover and Evitt (1978, p.76). This combination, as a questionable assignment, was not validly published in Davey and Williams (1966b, p.95), since these authors did not fully reference the basionym. Age: Albian.
Original diagnosis: Tasch, 1964, p.193: Hystrichosphaeridium marsupium
Pouch-shaped capsule bearing thin, elongate, tubular processes, bifurcate or falt-ended at terminations; body processes occur in clusters; peripheral processes occur as singles.
Dimensions: Holotype: Length 40 µm; width 28 µm; length of processes 8-10 µm; thickness of processes 1 µm; density of processes 1 per 5 µm of edge.