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Palaeocystodinium miocaenicum
Palaeocystodinium miocaenicum Strauss in Strauss et al., 2001, p.407–409, pl.2, figs.4–5; text-fig.2 (part).
This name was not validly published in Rusbült and Strauss (1992, caption to fig.2) since these authors did not provide a description.
Holotype: Strauss et al., 2001, pl.2, fig.5.
Age: middle Miocene.
Original description (Strauss et al., 2001):
Diagnosis: A bicornucavate species with apical and antapical horns being of nearly equal size, distinctly set off from the broad ellipsoidal central body and tapering towards granulate, acute distal tips. Peridinoid paratabulation is indicated by archaeopyle detachment of an isodeltaform hexa-2a intercalary paraplate, by dorsal longitudinal parasutural crests on the periphragm delimiting apical and antapical paraplates and by a right lateral bulge of the antapical horn, tentatively interpreted as a rudimentary second antapical horn.
Size: length 110...145µm, width 32...45µm
Remarks: The species differs from all other Palaeocystodinium species on account of its size, broad ellipsoidal central body and surface ornament. The rudimentary second antapical horn suggests phylogenetic derivation of Palaeocystodinium from Andalousiella Riegel. The species may show a brownish pigmentation in the basel horn region.
This name was not validly published in Rusbült and Strauss (1992, caption to fig.2) since these authors did not provide a description.
Holotype: Strauss et al., 2001, pl.2, fig.5.
Age: middle Miocene.
Original description (Strauss et al., 2001):
Diagnosis: A bicornucavate species with apical and antapical horns being of nearly equal size, distinctly set off from the broad ellipsoidal central body and tapering towards granulate, acute distal tips. Peridinoid paratabulation is indicated by archaeopyle detachment of an isodeltaform hexa-2a intercalary paraplate, by dorsal longitudinal parasutural crests on the periphragm delimiting apical and antapical paraplates and by a right lateral bulge of the antapical horn, tentatively interpreted as a rudimentary second antapical horn.
Size: length 110...145µm, width 32...45µm
Remarks: The species differs from all other Palaeocystodinium species on account of its size, broad ellipsoidal central body and surface ornament. The rudimentary second antapical horn suggests phylogenetic derivation of Palaeocystodinium from Andalousiella Riegel. The species may show a brownish pigmentation in the basel horn region.