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Dracodinium eocaenicum
Dracodinium eocaenicum (Agelopoulos, 1967, p.16–17, pl.2, figs.6–7; pl.3, figs.1–7) Williams et al., 2015, p.304.
Originally Wetzeliella, subsequently (and now) Dracodinium.
Taxonomic junior synonym: Wetzeliella (subsequently Dracodinium) pachyderma, by implication in Caro (1973, p.365), who considered the name Wetzeliella eocaenica to be not effectively published; and according to Williams et al. (2015, p.304).
Holotype: Agelopoulos, 1967, pl.3, fig.4.
Age: latest Ypresian.
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G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999
Wetzeliella eocaenica Agelopoulos, 1967, is a taxonomic senior synonym of Wetzeliella pachyderma Caro, 1973 (by implication in Caro, 1973, p.365), the diagnosis for which is: the outline is usually circular and the thickness of the endophragm is regular. The pericyst outline is similar except for the development of an apical horn. It is possible to distinguish very short cingular horns in some specimens. The archeopyle is in the apical part of the endophragm. The processes are fine, simple and distally bifurcate. They do not delineate the tabulation. Size: diameter 68-82 µm, thickness of endophragm 4 µm. Process length 8-10 µm, length of apical horn 8-10 µm.
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Originally Wetzeliella, subsequently (and now) Dracodinium.
Taxonomic junior synonym: Wetzeliella (subsequently Dracodinium) pachyderma, by implication in Caro (1973, p.365), who considered the name Wetzeliella eocaenica to be not effectively published; and according to Williams et al. (2015, p.304).
Holotype: Agelopoulos, 1967, pl.3, fig.4.
Age: latest Ypresian.
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G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999
Wetzeliella eocaenica Agelopoulos, 1967, is a taxonomic senior synonym of Wetzeliella pachyderma Caro, 1973 (by implication in Caro, 1973, p.365), the diagnosis for which is: the outline is usually circular and the thickness of the endophragm is regular. The pericyst outline is similar except for the development of an apical horn. It is possible to distinguish very short cingular horns in some specimens. The archeopyle is in the apical part of the endophragm. The processes are fine, simple and distally bifurcate. They do not delineate the tabulation. Size: diameter 68-82 µm, thickness of endophragm 4 µm. Process length 8-10 µm, length of apical horn 8-10 µm.
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