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Kiokansium unituberculatum
Kiokansium unituberculatum (Tasch in Tasch et al., 1964, p.194, pl.3, fig.8) Stover and Evitt, 1978, p.167,267.
Originally Hystrichosphaeridium, subsequently (and now) Kiokansium.
Taxonomic junior synonyms (at specific rank): Hystrichosphaeridium recurvatum subsp. polypes (as Kiokansium polypes), by implication in Duxbury (1983, p.49), who considered Hystrichosphaeridium recurvatum subsp. polypes (as Kiokansium polypes) to be the senior name;
According to Stover and Evitt, 1978:
Tax. sr. synonym of Hystrichosphaeridium aruncium Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium eccentrum Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium entomium Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium fabium Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium follium Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium kiowanum Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium magnarmatum Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium marsupium Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium perovatum Tasch, 1964
Tax. sr. synonym of Hystrichosphaeridium protellipticum Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium replexum Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium tribrachiosum Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium triradicosum Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium valgum Tasch, 1964,
Holotype: Tasch et al., 1964, pl.3, fig.8; Eisenack and Kjellström, 1972, p.713; Fensome et al., 1995, fig.1 — p.1861.
Locus typicus: Clark County, Kansas, U.S.A.
Stratum typicum: Albian
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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.
Kiokansium unituberculatum (Tasch in Tasch et al., 1964) Stover and Evitt, 1978. Emended diagnosis of K.polypes (a taxonomic junior synonym) from Duxbury (1983, p.49). Spheroidal dinoflagellate cysts bearing numerous solid processes which flare proximally and are distally flared and furcate, often into several very fine flexuous spines. Paratabulation is absent except where indicated by the archeopyle margin. Archeopyle two-plate precingular. Size: (of K.polypes) overall diameter 52-99um, diameter of central body 33-57 µm, process length 15-25 µm.
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Original diagnosis: Tasch, 1964, p.194: Hystrichsphaeridium unituberculatum
Subovate shell characterized by an inner ring of pointed protuberances that arise from a clearly defined inner band terminating in a small knob or neck. Exterior to this band, there is a fringe area, the surface and periphery of which bears flexible, curved, bifurcate or pointed processes.
Dimensions: Holotype: Maximum diameter of shell 46 Ám; maximum diameter of inner band 38 Ám; thickness of inner band 1.5 Ám; length of processes 8-14 Ám; thickness of processes, measured at base 2 Ám; density of processes 1.5 per 5 Ám of edge.
Originally Hystrichosphaeridium, subsequently (and now) Kiokansium.
Taxonomic junior synonyms (at specific rank): Hystrichosphaeridium recurvatum subsp. polypes (as Kiokansium polypes), by implication in Duxbury (1983, p.49), who considered Hystrichosphaeridium recurvatum subsp. polypes (as Kiokansium polypes) to be the senior name;
According to Stover and Evitt, 1978:
Tax. sr. synonym of Hystrichosphaeridium aruncium Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium eccentrum Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium entomium Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium fabium Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium follium Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium kiowanum Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium magnarmatum Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium marsupium Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium perovatum Tasch, 1964
Tax. sr. synonym of Hystrichosphaeridium protellipticum Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium replexum Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium tribrachiosum Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium triradicosum Tasch, 1964.
Tax. sr. synonym of Hystrichosphaeridium valgum Tasch, 1964,
Holotype: Tasch et al., 1964, pl.3, fig.8; Eisenack and Kjellström, 1972, p.713; Fensome et al., 1995, fig.1 — p.1861.
Locus typicus: Clark County, Kansas, U.S.A.
Stratum typicum: Albian
--------------------------------------------------
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Kiokansium unituberculatum (Tasch in Tasch et al., 1964) Stover and Evitt, 1978. Emended diagnosis of K.polypes (a taxonomic junior synonym) from Duxbury (1983, p.49). Spheroidal dinoflagellate cysts bearing numerous solid processes which flare proximally and are distally flared and furcate, often into several very fine flexuous spines. Paratabulation is absent except where indicated by the archeopyle margin. Archeopyle two-plate precingular. Size: (of K.polypes) overall diameter 52-99um, diameter of central body 33-57 µm, process length 15-25 µm.
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Original diagnosis: Tasch, 1964, p.194: Hystrichsphaeridium unituberculatum
Subovate shell characterized by an inner ring of pointed protuberances that arise from a clearly defined inner band terminating in a small knob or neck. Exterior to this band, there is a fringe area, the surface and periphery of which bears flexible, curved, bifurcate or pointed processes.
Dimensions: Holotype: Maximum diameter of shell 46 Ám; maximum diameter of inner band 38 Ám; thickness of inner band 1.5 Ám; length of processes 8-14 Ám; thickness of processes, measured at base 2 Ám; density of processes 1.5 per 5 Ám of edge.