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Scriniodinium klementii
Scriniodinium? klementii Pocock, 1972, p.91
Originally Scriniodinium, subsequently Scriniodinium?, thirdly (and now) Endoscrinium, fourthly Scriniocassis. Questionable assignment: Stover and Evitt (1978, p.188) — however, Below (1990, p.31) retained this species in Scriniodinium without question.
Holotype: Pocock, 1972, pl.23, figs.1-2; Jan du Chêne et al., 1986, pl.108, figs.5-8
Locus typicus: Imperial Tidewater Wapella, Western Canada
Stratum typicum: Callovian
Original description: Pocock, 1972, p.91
Vesicle ovoid; wall two-layered; capsule about 0.5 µm thick; smooth to finely granulose; outer wall envelopes capsule and comprises a reticulum with walls about 0.25 µm wide and brocci 0.5 (2.0) 3.5 µm wide, more or less rounded, supporting a very thin microgranulose membrane; outer wall about 1.0 µm thick; epitheca more or less hemispherical, terminated by a projection of the outer wall about 8.0 µm high; hypotheca rounded with an irregular, tending to bilobate, extension of the outer wall, about 5.0 µm long; at the antapex; transverse girdle and longitudinal furrow visible on most specimens; archeopyle simple precingular with free operculum occupying the position of plate 3"; plating, transverse girdle and longitudinal furrow reflected on surface of vesicle by strongly developed crests about 5.0 µm high and up to 2.0 µm wide; crests internally radially striate; tabulation 3", 6", 6""", 1""""; colour yellow; length of vesicle 113.3 (120.0) 132.0 µm; width of vesicle 84.7 (99.0) 105.0 µm; thickness (compressed) 25.0 (27.0) 35.0 µm; length of capsule 90.0 (99.0) 111.0 µm; width of capsule 70.0 (72.6) 87.0 µm; thickness of capsule (compressed) 16.0 (25.0) 27.0 µm.
Originally Scriniodinium, subsequently Scriniodinium?, thirdly (and now) Endoscrinium, fourthly Scriniocassis. Questionable assignment: Stover and Evitt (1978, p.188) — however, Below (1990, p.31) retained this species in Scriniodinium without question.
Holotype: Pocock, 1972, pl.23, figs.1-2; Jan du Chêne et al., 1986, pl.108, figs.5-8
Locus typicus: Imperial Tidewater Wapella, Western Canada
Stratum typicum: Callovian
Original description: Pocock, 1972, p.91
Vesicle ovoid; wall two-layered; capsule about 0.5 µm thick; smooth to finely granulose; outer wall envelopes capsule and comprises a reticulum with walls about 0.25 µm wide and brocci 0.5 (2.0) 3.5 µm wide, more or less rounded, supporting a very thin microgranulose membrane; outer wall about 1.0 µm thick; epitheca more or less hemispherical, terminated by a projection of the outer wall about 8.0 µm high; hypotheca rounded with an irregular, tending to bilobate, extension of the outer wall, about 5.0 µm long; at the antapex; transverse girdle and longitudinal furrow visible on most specimens; archeopyle simple precingular with free operculum occupying the position of plate 3"; plating, transverse girdle and longitudinal furrow reflected on surface of vesicle by strongly developed crests about 5.0 µm high and up to 2.0 µm wide; crests internally radially striate; tabulation 3", 6", 6""", 1""""; colour yellow; length of vesicle 113.3 (120.0) 132.0 µm; width of vesicle 84.7 (99.0) 105.0 µm; thickness (compressed) 25.0 (27.0) 35.0 µm; length of capsule 90.0 (99.0) 111.0 µm; width of capsule 70.0 (72.6) 87.0 µm; thickness of capsule (compressed) 16.0 (25.0) 27.0 µm.