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Kiokansium williamsii

Kiokansium williamsii Singh, 1983

Holotype: Singh, 1983, pl.54, fig.3
Locus typicus: Dunvegan Formation of the Peace River area
Stratum typicum: Albian-Cenomanian

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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 williamsii C. Singh, 1983. According to Singh (1983), Kiokansium williamsii is skolochorate, with an elongate, ellipsoidal central body; autophragm thin, smooth. Central body bearing 60 or more, uniformly distributed, nontabular and slender processes; stems about 0.8 µm and straight; tips of processes closed, slightly flared, and fringed with up to 4 µm straight or recurved spinules. Spinules covered with short hair-like bristles visible only at high magnification; Length of the processes from 1/5 to 1/3 length of central body; Archeopyle 2P, operculum free, often remaining in place. Size: overall length including processes 62-82 µm, overall width including processes 48-62 µm, length of central body 45-65 µm, width 27-42 µm, length of processes 10-18 µm
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Original description: Singh, 1983, p. 150
Skolochorate cysts; central body elongate ellipsoidal; autophragm thin, smooth, and single layered; central body bearing 60 or more, uniformly distributed, nontabular, and slender processes; stems of the processes about 0.8 Ám wide and straight; tips of the processes closed, slightly flared, and fringed with up to 4 Ám long, straight or recurved spinules; spinules covered with short, hair-like bristles visible only at high magnification; length of the processes from 1/5 to 1/3 of the length of the central body; archeopyle precingular, type 2P; operculum free, often remaining in place.
Size range: Overall length including the processes 62(71)82 Ám. Holotype 82 Ám. Overall breadth including the processes 48(58)62 Ám. Holotype 62 Ám. Length of the central body 45(53)65 Ám. Holotype 65 Ám. Breadth of the central body 27(35)42 Ám. Holotype 37 Ám. Length of the processes 10(13)18 Ám. Holotype 12 to 18 Ám. Specimens measured 14.

Affinities:
Singh, 1983, p. 150: Kiokansium williamsii differs from Bacchidinium polypes (Cookson and Eisenack) Davey, 1979, which has a spherical central body.
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