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Raphidodinium rhabdoreticulatum
Raphidodinium rhabdoreticulatum (Habib, 1973, p.53, pl.2, figs.3–7) Below, 1987b, p.58.
Now Druggidium. Originally (and now) Druggidium, subsequently Raphidodinium. Lentin and Williams, 1989 retained this species in Druggidium Habib, 1973.
Holotype: Habib, 1973, pl.2, fig.6
Locus typicus: DSDP-site 105, Hatteras Abyssal Plain
Stratum typicum: Valanginian-Albian
Original diagnosis: Habib, 1973, p.53: Druggidium rhabdoreticulatum
Small proximate dinoflagellate cysts with polygonal outline. Average C.I. is 25; range from 24 to 29. Average W.L.R. is 0.81; range from 0.76 to 0.88; W. L. R. of inner body ranges from 0.72 to 0.85. Cyst tabulation ?", 0a, 6", ?c, 6""", 1p, 1""""; archeopyle and operculum as for genus. Septa low and straight, or gently sinuous; not crenulate. Tract covered over its entire surface by a raised microreticulate membrane supported by short distally recurving baculae. Opercular pieces are adherent at the cingulum in approximately 75 percent of the examples. Forty measured specimens range in maximum diameter from 29 to 40 µm.
Now Druggidium. Originally (and now) Druggidium, subsequently Raphidodinium. Lentin and Williams, 1989 retained this species in Druggidium Habib, 1973.
Holotype: Habib, 1973, pl.2, fig.6
Locus typicus: DSDP-site 105, Hatteras Abyssal Plain
Stratum typicum: Valanginian-Albian
Original diagnosis: Habib, 1973, p.53: Druggidium rhabdoreticulatum
Small proximate dinoflagellate cysts with polygonal outline. Average C.I. is 25; range from 24 to 29. Average W.L.R. is 0.81; range from 0.76 to 0.88; W. L. R. of inner body ranges from 0.72 to 0.85. Cyst tabulation ?", 0a, 6", ?c, 6""", 1p, 1""""; archeopyle and operculum as for genus. Septa low and straight, or gently sinuous; not crenulate. Tract covered over its entire surface by a raised microreticulate membrane supported by short distally recurving baculae. Opercular pieces are adherent at the cingulum in approximately 75 percent of the examples. Forty measured specimens range in maximum diameter from 29 to 40 µm.