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Hystrichosphaera cingulata var. granulata
Hystrichosphaera cingulata var. granulata Clarke and Verdier, 1967
Now Pterodinium cingulatum ssp. granulatum. Originally Hystrichosphaera cingulata var. granulata, subsequently Spiniferites cingulatus ssp. granulatus, thirdly Spiniferites? cingulatus ssp. granulatus, fourthly (and now) Pterodinium cingulatum ssp. granulatum.
Holotype: Clarke and Verdier, 1967, pl.9, fig.5; Jan du Chêne et al., 1986, pl.88, figs.5-8
Locus typicus: Isle of Wight, Southern Cliff, England
Stratum typicum: Cenomanian
Original diagnosis: Clarke and Verdier, 1967, p.45-46
A variety of H. cingulata having distict, densely packed granules or low verrucae on the plates; the ledges are smooth.
Dimensions: Holotype: Overall length 51 µm, overall breadth 49 µm, height of ledges 8 µm. Range: Overall length 48-56 µm, overall breadth 43-50 µm, height of ledges 5-8 µm.
Now Pterodinium cingulatum ssp. granulatum. Originally Hystrichosphaera cingulata var. granulata, subsequently Spiniferites cingulatus ssp. granulatus, thirdly Spiniferites? cingulatus ssp. granulatus, fourthly (and now) Pterodinium cingulatum ssp. granulatum.
Holotype: Clarke and Verdier, 1967, pl.9, fig.5; Jan du Chêne et al., 1986, pl.88, figs.5-8
Locus typicus: Isle of Wight, Southern Cliff, England
Stratum typicum: Cenomanian
Original diagnosis: Clarke and Verdier, 1967, p.45-46
A variety of H. cingulata having distict, densely packed granules or low verrucae on the plates; the ledges are smooth.
Dimensions: Holotype: Overall length 51 µm, overall breadth 49 µm, height of ledges 8 µm. Range: Overall length 48-56 µm, overall breadth 43-50 µm, height of ledges 5-8 µm.