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Spiniferites pseudofurcatus
Spiniferites pseudofurcatus (Klumpp, 1953, p.388, pl.16, figs.12–14) Sarjeant, 1970, p.76. Emendation: Sarjeant, 1981, p.108–109, as Spiniferites pseudofurcatus.
Originally Hystrichokibotium, subsequently Hystrichosphaera (combination illegitimate), thirdly (and now) Spiniferites.
Taxonomic senior synonym: Areoligera (as Hystrichosphaera, now Spiniferites) incerta, according to Morgenroth (1966a, p.15) — however, Sarjeant (1981, p.108–109) retained Hystrichokibotium (as and now Spiniferites) pseudofurcatum.
Taxonomic junior synonyms: Hystrichosphaera (as Spiniferites) buccina, according to Lentin and Williams (1973, p.126); Hystrichosphaera tertiaria, according to Gocht (1969, p.32) and Sarjeant (1970, p.76). May (1980, p.64) considered Achomosphaera alcicornu to be a possible taxonomic junior synonym of this species.
Holotype: Klumpp, 1953, pl.16, figs.12,14; Sarjeant, 1981, pl.3, figs.1–2; text-fig.2; Fensome et al., 1995, figs.1–2 — p.1709.
Age: late Eocene.
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G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Spiniferites pseudofurcatus (Klumpp, 1953) Sarjeant, 1970, emend. Sarjeant, 1981. This species has gonal processes which are long, hollow, distally open, trifurcate and then shortly bifid. The wall is usually laevigate but occasionally can be strongly verrucate. Size: diameter of central body 58-68 µm, process length 20-36 µm.
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Emended diagnosis Sarjeant, 1981, p.108:
Cyst broadly ovoidal to subpolygonal, chorate, spiniferate. Processes gonal in situation, infundibular to buccinate. Distally the processes are bifurcate to tetrafurcate, normally with acute to subacute, simple branches of short to moderate length; on a very few processes the branches may be very briefly bifurcate or trifurcate, but they never ramify. Proximately, the processes flare only slightly or not at all; they are linked together by low sutural crests. Paratabulation 4', Oa, 6", ?5-6c, 6"', O-?1p, 1"". Archaeopyle precingular (type P), formed by loss of paraplate 3": operculum normally free.
Originally Hystrichokibotium, subsequently Hystrichosphaera (combination illegitimate), thirdly (and now) Spiniferites.
Taxonomic senior synonym: Areoligera (as Hystrichosphaera, now Spiniferites) incerta, according to Morgenroth (1966a, p.15) — however, Sarjeant (1981, p.108–109) retained Hystrichokibotium (as and now Spiniferites) pseudofurcatum.
Taxonomic junior synonyms: Hystrichosphaera (as Spiniferites) buccina, according to Lentin and Williams (1973, p.126); Hystrichosphaera tertiaria, according to Gocht (1969, p.32) and Sarjeant (1970, p.76). May (1980, p.64) considered Achomosphaera alcicornu to be a possible taxonomic junior synonym of this species.
Holotype: Klumpp, 1953, pl.16, figs.12,14; Sarjeant, 1981, pl.3, figs.1–2; text-fig.2; Fensome et al., 1995, figs.1–2 — p.1709.
Age: late Eocene.
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G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Spiniferites pseudofurcatus (Klumpp, 1953) Sarjeant, 1970, emend. Sarjeant, 1981. This species has gonal processes which are long, hollow, distally open, trifurcate and then shortly bifid. The wall is usually laevigate but occasionally can be strongly verrucate. Size: diameter of central body 58-68 µm, process length 20-36 µm.
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Emended diagnosis Sarjeant, 1981, p.108:
Cyst broadly ovoidal to subpolygonal, chorate, spiniferate. Processes gonal in situation, infundibular to buccinate. Distally the processes are bifurcate to tetrafurcate, normally with acute to subacute, simple branches of short to moderate length; on a very few processes the branches may be very briefly bifurcate or trifurcate, but they never ramify. Proximately, the processes flare only slightly or not at all; they are linked together by low sutural crests. Paratabulation 4', Oa, 6", ?5-6c, 6"', O-?1p, 1"". Archaeopyle precingular (type P), formed by loss of paraplate 3": operculum normally free.