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Bitubericysta
From Williams et al., 2017:
[Bitubericysta, Soncini, 1992, p. 326
Type species: Bitubericysta boroujiana, Soncini, 1992 (pl.1, figs.1–3)]
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Original description: [Soncini, 1992]:
Diagnosis:
Cyst spheroidal, skolochorate, two-layered. Thin endophragm closely appressed to fibro-pitted periphragm variable in thickness. Intratabular processes well-developed, arising from the periphragm only, indicating a complete gonyaulacacean paratabulation, with a Danea-type organization. Small apical protrusion broad and solid. Processes fibrous and hollow, simple buccinate to complexely divided, expanding distally and irregularly recurving in a spinous margin. Annular to soleate antapical complex, surrounding a solid periphragmal protrusion variable in length. Archeopyle type P (4), operculum free.
[Bitubericysta, Soncini, 1992, p. 326
Type species: Bitubericysta boroujiana, Soncini, 1992 (pl.1, figs.1–3)]
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Original description: [Soncini, 1992]:
Diagnosis:
Cyst spheroidal, skolochorate, two-layered. Thin endophragm closely appressed to fibro-pitted periphragm variable in thickness. Intratabular processes well-developed, arising from the periphragm only, indicating a complete gonyaulacacean paratabulation, with a Danea-type organization. Small apical protrusion broad and solid. Processes fibrous and hollow, simple buccinate to complexely divided, expanding distally and irregularly recurving in a spinous margin. Annular to soleate antapical complex, surrounding a solid periphragmal protrusion variable in length. Archeopyle type P (4), operculum free.