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Wetzeliella minuscula
Wetzeliella? miniscula Alberti, 1961
Now Palaeotetradinium. Originally Wetzeliella subgenus Rhombodinium?, subsequently Rhombodinium?, thirdly Inversidinium, fourthly (and now) Palaeotetradinium. Alberti, 1961, questionably included this species in Wetzeliella subgenus Rhombodinium.
Taxonomic junior synonym: Inversidinium exilimurum, according to Stover and Evitt (1978, p.71).
Holotype: Alberti, 1961, pl.1, fig.10; pl.12, fig.4
Locus typicus: Hildesheim, Germany
Stratum typicum: Early Eocene
Translation Alberti, 1961: LPP
Original diagnosis: Alberti, 1961, p. 10
Shell flattened, almost rhomboedrical; wepitheca triangular slightly elongated. Lateral horns short, indented at the free ends. Transverse furrow indicated. Epitheca shorter than the inverse hat-shaped hypotheca. With two antapical bulges, seperated by parallel to the longitudinal direction running gap. Presumably with a delicate inner body. The shell membrane is transparent, yellowish. A transverse furrow is indicated on one side (may be a fault). A pylome is questionable.
Now Palaeotetradinium. Originally Wetzeliella subgenus Rhombodinium?, subsequently Rhombodinium?, thirdly Inversidinium, fourthly (and now) Palaeotetradinium. Alberti, 1961, questionably included this species in Wetzeliella subgenus Rhombodinium.
Taxonomic junior synonym: Inversidinium exilimurum, according to Stover and Evitt (1978, p.71).
Holotype: Alberti, 1961, pl.1, fig.10; pl.12, fig.4
Locus typicus: Hildesheim, Germany
Stratum typicum: Early Eocene
Translation Alberti, 1961: LPP
Original diagnosis: Alberti, 1961, p. 10
Shell flattened, almost rhomboedrical; wepitheca triangular slightly elongated. Lateral horns short, indented at the free ends. Transverse furrow indicated. Epitheca shorter than the inverse hat-shaped hypotheca. With two antapical bulges, seperated by parallel to the longitudinal direction running gap. Presumably with a delicate inner body. The shell membrane is transparent, yellowish. A transverse furrow is indicated on one side (may be a fault). A pylome is questionable.