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Scriniodinium irisae
Scriniodinium "?irisiae" Kjellström, 1973, p.40–42, fig.34. Holotype: Kjellström, 1973, fig.34; Jan du Chêne et al., 1986a, pl.46, fig.8.
NOW Hystrichosphaeropsis. Originally Scriniodinium?, subsequently (and now) Hystrichosphaeropsis. Questionable assignment: Kjellström (1973, p.40). Age: middle-late Maastrichtian.
Original diagnosis: Kjellström, 1973, p.40, 42
?Scriniodinium with tripartite, granular theca. Central capsule granular, possessing two hemispherical segments. The bases of these two segments represent the well-defined equatorial cingulum. Archaeopyle precingular.
Dimensions - Length of theca 120 µm; breadth of theca 80 µm. Diameter of central capsule 70 µm.
Affinities:
Kjellström, 1973, p.42: This species is characterized by having a coarsely granular ornamentation of the theca and central capsule wall. This species is provisionally attributed to the genus Scriniodinium (cf. Eisenack"s remarks on the genus Scriniodinium in Eeisenack and Klement 1964, p. 745 and on the genus Triblastula in Eisenack and Kjellström 1971, p. 1071).
NOW Hystrichosphaeropsis. Originally Scriniodinium?, subsequently (and now) Hystrichosphaeropsis. Questionable assignment: Kjellström (1973, p.40). Age: middle-late Maastrichtian.
Original diagnosis: Kjellström, 1973, p.40, 42
?Scriniodinium with tripartite, granular theca. Central capsule granular, possessing two hemispherical segments. The bases of these two segments represent the well-defined equatorial cingulum. Archaeopyle precingular.
Dimensions - Length of theca 120 µm; breadth of theca 80 µm. Diameter of central capsule 70 µm.
Affinities:
Kjellström, 1973, p.42: This species is characterized by having a coarsely granular ornamentation of the theca and central capsule wall. This species is provisionally attributed to the genus Scriniodinium (cf. Eisenack"s remarks on the genus Scriniodinium in Eeisenack and Klement 1964, p. 745 and on the genus Triblastula in Eisenack and Kjellström 1971, p. 1071).