Back
Operculodinium rarispinosum
From Fensome et al., 2019:
Operculodinium? rarispinosum Cookson and Eisenack, 1971, p.220–221, pl.9, figs.7–8. Holotype: Cookson and Eisenack, 1971, pl.9, fig.7. Questionable assignment: Cookson and Eisenack (1971, p.220–221). Partridge in Lentin and Williams
(1985, p.262) considered this species to be an acritarch. Age: Albian–Cenomanian.
---------------------------------------------------------------------------------------------------
Locus typicus: Eucla basin, W. Australia
Stratum typicum: Albian-Cenomanian
Original diagnosis: Cookson and Eisenack, 1971, p.220-221
Shell spherical, rather thickwalled, covered with somewhat sparsely distributed short, bluntly-pointed, solid spines. An archeopyle has not been observed.
Dimensions: Holotype, overall diameter c. 59 µm, diameter of shell c. 55 µm, length of spines c. 1-1.5 µm. Range, diameter of shell c. 32-55 µm, spines c. 1-2 µm long.
Operculodinium? rarispinosum Cookson and Eisenack, 1971, p.220–221, pl.9, figs.7–8. Holotype: Cookson and Eisenack, 1971, pl.9, fig.7. Questionable assignment: Cookson and Eisenack (1971, p.220–221). Partridge in Lentin and Williams
(1985, p.262) considered this species to be an acritarch. Age: Albian–Cenomanian.
---------------------------------------------------------------------------------------------------
Locus typicus: Eucla basin, W. Australia
Stratum typicum: Albian-Cenomanian
Original diagnosis: Cookson and Eisenack, 1971, p.220-221
Shell spherical, rather thickwalled, covered with somewhat sparsely distributed short, bluntly-pointed, solid spines. An archeopyle has not been observed.
Dimensions: Holotype, overall diameter c. 59 µm, diameter of shell c. 55 µm, length of spines c. 1-1.5 µm. Range, diameter of shell c. 32-55 µm, spines c. 1-2 µm long.