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Octodinium
From Fensome et al., 2019:
Octodinium, Wrenn and Hart, 1988, p.359.
Type: Wrenn and Hart, 1988, fig.29, no.5, as Octodinium askiniae.
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Original description: [Wrenn and Hart, 1988]:
Diagnosis:
Subelliptical to subtriangular cornucavate peridinioid dinocysts characterized by a combination archeopyle, which when fully developed, is of the IPa type. The 2a paraplate may be partially or completely detached; the 4" paraplate is adnate adcingularly, though the 3"/4" and 4"/5" parasutures may be open. The intercalary 2a paraplate is eight-sided.
Octodinium, Wrenn and Hart, 1988, p.359.
Type: Wrenn and Hart, 1988, fig.29, no.5, as Octodinium askiniae.
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Original description: [Wrenn and Hart, 1988]:
Diagnosis:
Subelliptical to subtriangular cornucavate peridinioid dinocysts characterized by a combination archeopyle, which when fully developed, is of the IPa type. The 2a paraplate may be partially or completely detached; the 4" paraplate is adnate adcingularly, though the 3"/4" and 4"/5" parasutures may be open. The intercalary 2a paraplate is eight-sided.