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Ctenidodinium tenellum
From Fensome et al., 2019:
Ctenidodinium tenellum Deflandre, 1939a, p.182, pl.9, figs.9–10. Holotype: Deflandre, 1939a, pl.9, figs.9–10. Taxonomic junior synonym: Dichadogonyaulax stauromatos, according to Courtinat (1989, p.209) — however, Lentin and Williams (1993, p.179–180) retained Dichadogonyaulax stauromatos as a taxonomic junior synonym of Dichadogonyaulax sellwoodii. Sarjeant (1978a, p.37) recommended "that this species name should be allowed to fall into disuse". Woollam (1980, p.250) considered Dichadogonyaulax (as Ctenidodinium) sellwoodii and Dichadogonyaulax (as Ctenidodinium) stauromatos to be possible taxonomic junior synonyms of this species. Age: Oxfordian.
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Translation Courtinat, 1989: LPP
Remarks: Courtinat, 1989, p.209
C. tenellum presents a preapical and an anterior intercalary paraplate. The paratabulation in the apical region is type P/C, in the dorsal precingular region typegamma and the antapical paraplate is quadrate and symmetrically arranged.
According to Woollam (1983), D. stauromatos and D. sellwoodii Sarjeant 1975 are synonyms of C. tenellum. This opninion is partially accepted. If the morphological charateristics of D. stauromatos are identical to those of C. tenellum, the description and illustrations of D. sellwoodii do not confirm the synonymy. It seems, howeer, that D. sellwoodii has a psi-type dorsal precingular arrangement.
Ctenidodinium tenellum Deflandre, 1939a, p.182, pl.9, figs.9–10. Holotype: Deflandre, 1939a, pl.9, figs.9–10. Taxonomic junior synonym: Dichadogonyaulax stauromatos, according to Courtinat (1989, p.209) — however, Lentin and Williams (1993, p.179–180) retained Dichadogonyaulax stauromatos as a taxonomic junior synonym of Dichadogonyaulax sellwoodii. Sarjeant (1978a, p.37) recommended "that this species name should be allowed to fall into disuse". Woollam (1980, p.250) considered Dichadogonyaulax (as Ctenidodinium) sellwoodii and Dichadogonyaulax (as Ctenidodinium) stauromatos to be possible taxonomic junior synonyms of this species. Age: Oxfordian.
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Translation Courtinat, 1989: LPP
Remarks: Courtinat, 1989, p.209
C. tenellum presents a preapical and an anterior intercalary paraplate. The paratabulation in the apical region is type P/C, in the dorsal precingular region typegamma and the antapical paraplate is quadrate and symmetrically arranged.
According to Woollam (1983), D. stauromatos and D. sellwoodii Sarjeant 1975 are synonyms of C. tenellum. This opninion is partially accepted. If the morphological charateristics of D. stauromatos are identical to those of C. tenellum, the description and illustrations of D. sellwoodii do not confirm the synonymy. It seems, howeer, that D. sellwoodii has a psi-type dorsal precingular arrangement.