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Selenopemphix armata
Selenopemphix armata Bujak in Bujak et al., 1980
Holotype: Bujak in Bujak et al. 1980, pl.21, fig.1-3
Paratype: Bujak in Bujak et al. 1980, pl.21, figs.2-3
Locus typicus: Barton, Hampshire, southern England.
Stratum typicum: Late Eocene
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G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP
Selenopemphix armata Bujak in Bujak et al., 1980. According to Bujak in Bujak et al. (1980, p. 83-84), Selenopemphix armata is compressed polarly. The apex is rounded or prolonged into a small rounded horn. The antapex is rounded or prolonged into two short rounded horns of about equal size. Autophragm laevigate to chagrinate. Paracingular margins denoted by distally entire crests. Spines present on apical and antapical horns and paracingular ridges but absent from pre- and postcingular areas. The spines are solid, curved, and distally acuminate or bulbous; they may be proximally branched, particularly on the horns. Parasulcus may be indicated by a short indentation. Sometimes operculum is attached along the posterior margin. Size: autocyst thickness without processes 26-43 µm, width without processes 24-45 µm, process length 9-17 µm.
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Original diagnosis: Bujak in Bujak et al., 1980
Autocyst compression polar. Apex rounded, sometimes prolonged into a small rounded horn. Antapex rounded or prolonged into two small rounded horns of approximately equal size. Autophragm laevigate to chagrinate, without perforations, may be faintly striate. Paracingular margins denoted by distally entire crests. Spines are present on the apical and antapical horns and on the paracingular ridges, but are absent from the precingular and postcingular zones. The spines are solid, curved, and distally acuminate or bulbous; they may be proximally branched particularly on the horns. The parasulcus may be defined by a shallow indentation. Archaeopyle intercalary, rounded and broad, resulting from the partial or complete detachment of the second anterior intercalary paraplate 2a. It is always asymmetrically located relative to the middorsal line. The operculum is free or remains attached along the posterior parasuture. Dimensions. Autocyst thickness without spines = 26-43 µm, breadth without spines = 24-45µm, spine length = 9-17µm.
Holotype: Bujak in Bujak et al. 1980, pl.21, fig.1-3
Paratype: Bujak in Bujak et al. 1980, pl.21, figs.2-3
Locus typicus: Barton, Hampshire, southern England.
Stratum typicum: Late Eocene
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G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP
Selenopemphix armata Bujak in Bujak et al., 1980. According to Bujak in Bujak et al. (1980, p. 83-84), Selenopemphix armata is compressed polarly. The apex is rounded or prolonged into a small rounded horn. The antapex is rounded or prolonged into two short rounded horns of about equal size. Autophragm laevigate to chagrinate. Paracingular margins denoted by distally entire crests. Spines present on apical and antapical horns and paracingular ridges but absent from pre- and postcingular areas. The spines are solid, curved, and distally acuminate or bulbous; they may be proximally branched, particularly on the horns. Parasulcus may be indicated by a short indentation. Sometimes operculum is attached along the posterior margin. Size: autocyst thickness without processes 26-43 µm, width without processes 24-45 µm, process length 9-17 µm.
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Original diagnosis: Bujak in Bujak et al., 1980
Autocyst compression polar. Apex rounded, sometimes prolonged into a small rounded horn. Antapex rounded or prolonged into two small rounded horns of approximately equal size. Autophragm laevigate to chagrinate, without perforations, may be faintly striate. Paracingular margins denoted by distally entire crests. Spines are present on the apical and antapical horns and on the paracingular ridges, but are absent from the precingular and postcingular zones. The spines are solid, curved, and distally acuminate or bulbous; they may be proximally branched particularly on the horns. The parasulcus may be defined by a shallow indentation. Archaeopyle intercalary, rounded and broad, resulting from the partial or complete detachment of the second anterior intercalary paraplate 2a. It is always asymmetrically located relative to the middorsal line. The operculum is free or remains attached along the posterior parasuture. Dimensions. Autocyst thickness without spines = 26-43 µm, breadth without spines = 24-45µm, spine length = 9-17µm.