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Heterosphaeridium verdieri
Heterosphaeridium verdieri Yun, 1981
Holotype: Yun, 1981, pl.3, fig.5; Fensome et al., 1991, fig.2 p.767
Paratype: Yun, 1981, pl.3, fig.3
Locus typicus: Timmermann brickyard near Esbeck, Germany
Stratum Typicum: Early Santonian
Translation Yun, 1981: Fensome, 1991, p. 767-768
Original diagnosis: Yun, 1981, p. 48
A proximochorate cyst with two different types of spines: solid processes and hollow spines with a distal opening. Some spines are connected together distally. Among the solid spines, the numerous slender spines with a distal V-shaped fork are conspicuous. Archeopyle is apical.
Original description: Yun, 1981, p. 48
Ovoid central body consisting of a granular endophragm and a thin, smooth or perforated periphragm which forms the spines. Various spine types occur: 1. solid. Most are slender, only distally finely furcate or widened and truncate. Apart from these slender spines there are others which are forked at mid-length. One or both of the forked, distal branches may be forked again. Distally acuminate spines are rare. 2. hollow and distally open. They are mostly simple, thicker and much rarer than the solid ones. As in the others, their diameter between the broadened base and distal widening remains more or less constant. The spines are connected together in 3-8 places by distal widenings (in the hollow ones) or by trabeculae (in the solid ones).
Holotype: Yun, 1981, pl.3, fig.5; Fensome et al., 1991, fig.2 p.767
Paratype: Yun, 1981, pl.3, fig.3
Locus typicus: Timmermann brickyard near Esbeck, Germany
Stratum Typicum: Early Santonian
Translation Yun, 1981: Fensome, 1991, p. 767-768
Original diagnosis: Yun, 1981, p. 48
A proximochorate cyst with two different types of spines: solid processes and hollow spines with a distal opening. Some spines are connected together distally. Among the solid spines, the numerous slender spines with a distal V-shaped fork are conspicuous. Archeopyle is apical.
Original description: Yun, 1981, p. 48
Ovoid central body consisting of a granular endophragm and a thin, smooth or perforated periphragm which forms the spines. Various spine types occur: 1. solid. Most are slender, only distally finely furcate or widened and truncate. Apart from these slender spines there are others which are forked at mid-length. One or both of the forked, distal branches may be forked again. Distally acuminate spines are rare. 2. hollow and distally open. They are mostly simple, thicker and much rarer than the solid ones. As in the others, their diameter between the broadened base and distal widening remains more or less constant. The spines are connected together in 3-8 places by distal widenings (in the hollow ones) or by trabeculae (in the solid ones).