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Moorodinium
From Williams et al., 2017:
[Moorodinium, Backhouse, 1988, p.97.
Fensome et al. (1991, p.359) argued that the correct spelling should be "Mooradinium", as opposed to the protologue rendition "Moorodinium"; however, Fensome et al. (1996, p.2015–2016), reconsidered and recommended that the spelling "Moorodinium" be retained.
Type species: Moorodinium spinatum, Backhouse, 1988, p. 97, 100 (pl.34, fig.8; text-fig.30E)]
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Original description: [Backhouse, 1988]:
Synopsis:
Cysts small to medium, ovoid to trilobate; autophragm smooth or granular, thin and membranous. Paratabulation indicated by fine septa or not expressed; paracingulum always indicated, parasulcus usually not indicated. Archeopyle combination epicystal, type (tA, tP), operculum free or attached.
Description:
Shape: Ovoid or trilobate, epicyst and hypocyst usually differing in shape.
Wall Relationships: Autophragm only, always thin, membranous and usually finely folded.
Wall Features: Autophragm may bear membranous septa or spines. Surface finely granular or smooth under SEM. Some surface features pass dorso-ventrally over the apex of the cyst.
Paratabulation: May be expressed by septa or by patterns in the surface granulation. Formula not known, 6 postcingular paraplates, and an antapical paraplate indicated on type species.
Archeopyle: Combination epicystal, type (tA, tP), epicyst and hypocyst similar in size so that archeopyle formation splits cyst in half. Operculum frequently attached.
Paracingulum: Usually clearly expressed by transverse septa, slightly
offset, not subdivided into paracingular paraplates.
Parasulcus: Usually not indicated.
Size: Small to medium.
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Fensome et al., 1991, p. 359:
Remarks:
Named after the town of Moora, Western Australia, near which the type locality is situated, and with the usual dinoflagellate suffix "dinium". Backhouse (1988) gave the spelling of the generic name as "Moorodinium". Since he derived this name expressly from the town of Moora, the generic name is here revised to "Mooradinium"; since the town name ends in a vowel, no other connective vowel, or change of connective vowel, appears necessary.
[Moorodinium, Backhouse, 1988, p.97.
Fensome et al. (1991, p.359) argued that the correct spelling should be "Mooradinium", as opposed to the protologue rendition "Moorodinium"; however, Fensome et al. (1996, p.2015–2016), reconsidered and recommended that the spelling "Moorodinium" be retained.
Type species: Moorodinium spinatum, Backhouse, 1988, p. 97, 100 (pl.34, fig.8; text-fig.30E)]
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description: [Backhouse, 1988]:
Synopsis:
Cysts small to medium, ovoid to trilobate; autophragm smooth or granular, thin and membranous. Paratabulation indicated by fine septa or not expressed; paracingulum always indicated, parasulcus usually not indicated. Archeopyle combination epicystal, type (tA, tP), operculum free or attached.
Description:
Shape: Ovoid or trilobate, epicyst and hypocyst usually differing in shape.
Wall Relationships: Autophragm only, always thin, membranous and usually finely folded.
Wall Features: Autophragm may bear membranous septa or spines. Surface finely granular or smooth under SEM. Some surface features pass dorso-ventrally over the apex of the cyst.
Paratabulation: May be expressed by septa or by patterns in the surface granulation. Formula not known, 6 postcingular paraplates, and an antapical paraplate indicated on type species.
Archeopyle: Combination epicystal, type (tA, tP), epicyst and hypocyst similar in size so that archeopyle formation splits cyst in half. Operculum frequently attached.
Paracingulum: Usually clearly expressed by transverse septa, slightly
offset, not subdivided into paracingular paraplates.
Parasulcus: Usually not indicated.
Size: Small to medium.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Fensome et al., 1991, p. 359:
Remarks:
Named after the town of Moora, Western Australia, near which the type locality is situated, and with the usual dinoflagellate suffix "dinium". Backhouse (1988) gave the spelling of the generic name as "Moorodinium". Since he derived this name expressly from the town of Moora, the generic name is here revised to "Mooradinium"; since the town name ends in a vowel, no other connective vowel, or change of connective vowel, appears necessary.