Back
Spinidinium taiwanianum
Spinidinium ?taiwanianum Shaw Chenglong, 1999b, p.158–159, figs.1–3.
Holotype: Shaw Chenglong, 1999b, figs.1–3. Questionable assignment: Sluijs et al. (2009, p.48).
Age: Eocene.
Original description (Shaw Chenglong, 1999b)
Outer cyst sub-quadragonal in droso-ventral view, 39 µm long, 46 µm wide. Outer cyst membrane thin; ornamented with short rodlike, clublike, spinelike or grapple-like appendages. Apical horn weakly developed and antapical horn indistinct. innercyst indistinct. Archeopyle intercalary type, operculum free or attached. Dimensions holotype: overall 39 µm, 46 µm wide.
Derivation of name: The specific epithet taiwanianum is derived from the name of the type locality. Stratigraphic occurence: Eocene (OK-1 well, 1788m).
Remarks: The species differs from the type species Spinidinium styloniferum in having weakly developed indistinct apical and antapical horns and in having smaller size.
Holotype: Shaw Chenglong, 1999b, figs.1–3. Questionable assignment: Sluijs et al. (2009, p.48).
Age: Eocene.
Original description (Shaw Chenglong, 1999b)
Outer cyst sub-quadragonal in droso-ventral view, 39 µm long, 46 µm wide. Outer cyst membrane thin; ornamented with short rodlike, clublike, spinelike or grapple-like appendages. Apical horn weakly developed and antapical horn indistinct. innercyst indistinct. Archeopyle intercalary type, operculum free or attached. Dimensions holotype: overall 39 µm, 46 µm wide.
Derivation of name: The specific epithet taiwanianum is derived from the name of the type locality. Stratigraphic occurence: Eocene (OK-1 well, 1788m).
Remarks: The species differs from the type species Spinidinium styloniferum in having weakly developed indistinct apical and antapical horns and in having smaller size.