Back
Pervosphaeridium paucispinum
Trichodinium paucispinum (Eisenack and Cookson, 1960, p.5–6, pl.2, fig.7) Jan du Chêne et al., 1986a, p.369. Emendation: Jan du Chêne et al., 1986a, p.369, as Pervosphaeridium paucispinum.
Originally Trichodinium, subsequently Occisucysta, thirdly (and now) Pervosphaeridium.
Holotype: Eisenack and Cookson, 1960, pl.2, fig.7; Jan du Chêne et al., 1986, pl.122, fig. 13
Locus typicus: Santos"s Oodnadatta Bore, Western Australia
Stratum typicum: Albian
Original description: Eisenack and Cookson, 1960, p.5
Shell oval to nearly spherical, girdle narrow, equatorial; aptca; horn narrow, straight-sided surmounted by three or more short, flat divergent fibres. Shell-membrane densely granular, sparsely covered with broadly-based spines. Pylome broad.
Dimensions:
Type: Overall 100µm, long, 81µm broad, shell-85µm; 81µm, horn c. 15µm long.
Originally Trichodinium, subsequently Occisucysta, thirdly (and now) Pervosphaeridium.
Holotype: Eisenack and Cookson, 1960, pl.2, fig.7; Jan du Chêne et al., 1986, pl.122, fig. 13
Locus typicus: Santos"s Oodnadatta Bore, Western Australia
Stratum typicum: Albian
Original description: Eisenack and Cookson, 1960, p.5
Shell oval to nearly spherical, girdle narrow, equatorial; aptca; horn narrow, straight-sided surmounted by three or more short, flat divergent fibres. Shell-membrane densely granular, sparsely covered with broadly-based spines. Pylome broad.
Dimensions:
Type: Overall 100µm, long, 81µm broad, shell-85µm; 81µm, horn c. 15µm long.