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Ellipsoidictyum scutella
Ellipsiodictyum scutella (Eisenack, 1958) Below, 1982
Now Scriniodinium?. Originally Scriniodinium, subsequently Ellipsoidictyum, thirdly Parvocavatus?, fourthly (and now) Scriniodinium?.
Sarjeant, 1985, emended the diagnosis of this species when he questionably transferred it to Parvocavatus Gitmez, 1970.
Holotype: Eisenack, 1958, pl.24, fig.3; Sarjeant, 1985, pl.7, fig.3, pl.9, figs,4-5, text-fig.6; Jan du Chêne et al., 1986, pl.111, fig.1
Locus typicus: Borehole at Marne, Feld Heide, Germany
Stratum typicum: Late Aptian
Translation Eisenack, 1958: Sarjeant, 1958
Original diagnosis: Eisenack, 1958, p.385: Scriniodinium scutella
Test compressed, broadly oval with pointed apex and shallowly curving antapex. Girdle furrow proportionately deep and broad, removed by about 2/5 of the overall length from the apex. Capsule oval. Lateral flange narrow, on the epitheca broadest above the transverse furrow, becoming narrower towards the apex, on the hypotheca broadest around the antapex.
Now Scriniodinium?. Originally Scriniodinium, subsequently Ellipsoidictyum, thirdly Parvocavatus?, fourthly (and now) Scriniodinium?.
Sarjeant, 1985, emended the diagnosis of this species when he questionably transferred it to Parvocavatus Gitmez, 1970.
Holotype: Eisenack, 1958, pl.24, fig.3; Sarjeant, 1985, pl.7, fig.3, pl.9, figs,4-5, text-fig.6; Jan du Chêne et al., 1986, pl.111, fig.1
Locus typicus: Borehole at Marne, Feld Heide, Germany
Stratum typicum: Late Aptian
Translation Eisenack, 1958: Sarjeant, 1958
Original diagnosis: Eisenack, 1958, p.385: Scriniodinium scutella
Test compressed, broadly oval with pointed apex and shallowly curving antapex. Girdle furrow proportionately deep and broad, removed by about 2/5 of the overall length from the apex. Capsule oval. Lateral flange narrow, on the epitheca broadest above the transverse furrow, becoming narrower towards the apex, on the hypotheca broadest around the antapex.