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Ataxiodinium
From Williams et al., 2017:
[Ataxiodinium, Reid, 1974, p. 588
tax. jr. syn. of Planinosphaeridium Eisenack, 1965, according to Wall et al., 1977. Edwards and Andrle, 1992, retained Ataxiodinium as a separate genus.
Type species: Ataxiodinium choane, Reid, 1974 (pl.1, figs.1–2)]
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Original description: [Reid, 1974]:
Description:
Cavate cysts with a subcircular inner capsule and an expanded outer membrane periphragm attached at isolated points by narrow funnel shaped hollows to the inner capsule. Archeopyle precingular, trapezoidal.
Affinities:
Ataxiodinium differs from Pentadinium in shape, lack of clearly marked fields and tabulation, and trapezoidal archeopyle.
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Notes:
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Ataxiodinium Reid, 1974. From the diagnosis (Reid, 1974), is a cavate cyst with subcircular endocyst and expanded outer periphragm attached at isolated points by narrow funnel-shaped hollows to the inner capsule. Archeopyle precingular. Differs from Pentadinium in shape, lack of clearly marked fields and tabulation, and trapezoidal archeopyle.
[Ataxiodinium, Reid, 1974, p. 588
tax. jr. syn. of Planinosphaeridium Eisenack, 1965, according to Wall et al., 1977. Edwards and Andrle, 1992, retained Ataxiodinium as a separate genus.
Type species: Ataxiodinium choane, Reid, 1974 (pl.1, figs.1–2)]
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description: [Reid, 1974]:
Description:
Cavate cysts with a subcircular inner capsule and an expanded outer membrane periphragm attached at isolated points by narrow funnel shaped hollows to the inner capsule. Archeopyle precingular, trapezoidal.
Affinities:
Ataxiodinium differs from Pentadinium in shape, lack of clearly marked fields and tabulation, and trapezoidal archeopyle.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Notes:
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Ataxiodinium Reid, 1974. From the diagnosis (Reid, 1974), is a cavate cyst with subcircular endocyst and expanded outer periphragm attached at isolated points by narrow funnel-shaped hollows to the inner capsule. Archeopyle precingular. Differs from Pentadinium in shape, lack of clearly marked fields and tabulation, and trapezoidal archeopyle.