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Hystrichosphaeridium equispinosum
From Fensome et al., 2019:
Hystrichosphaeridium equispinosum Tasch, 1963, p.336, pl.1, fig.12. Holotype: Tasch, 1963, pl.1, fig.12. The specimen illustrated is
assignable to the spore Raistrickia Schopf et al., 1944, according to Stover and Evitt (1978, p.265). Age: Early Permian.
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Locus typicus: Wellington Formation, Marion County, Kansas, USA
Stratum typicum: Early Permian
Original diagnose: Tasch, 1963, p.336
Spherical configuration, shell 42 µm in diameter, with broad, club-shaped processes varying in length from 6 µm to 10 µm and having a density of 10 per 5 µm of edge.
Hystrichosphaeridium equispinosum Tasch, 1963, p.336, pl.1, fig.12. Holotype: Tasch, 1963, pl.1, fig.12. The specimen illustrated is
assignable to the spore Raistrickia Schopf et al., 1944, according to Stover and Evitt (1978, p.265). Age: Early Permian.
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Locus typicus: Wellington Formation, Marion County, Kansas, USA
Stratum typicum: Early Permian
Original diagnose: Tasch, 1963, p.336
Spherical configuration, shell 42 µm in diameter, with broad, club-shaped processes varying in length from 6 µm to 10 µm and having a density of 10 per 5 µm of edge.