Cleistosphaeridium fungosus, Harding 1990

Name not validly published since lodgement of holotype not specified.

Holotype: Harding, 1990, pl.25, fig.1
Locus typicus: O. Gott, Lower Saxony, Germany
Stratum typicum: Early Barremian

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description: [Harding, 1990, p.43]:

Diagnosis:
Shape: Ambitus subspherical. Even distribution of equidimensional tubiform processes. Epicyst and hypocyst not differentiated. No dorso-ventral compression.
Phragma: Autophragm ca. 0.5 µm thick, distally covered in densely packed filamentous fibres up to 1 µm long and 0.2 µm in diameter. Numerous solid, tubiform processes (?periphragm) up to 4 µm long are evenly distributed over the cyst surface in an apparently non-tabular fashion. The processes flare slightly distally and may have a central perforation at the end.
Paratabulation: Epicystal paratabulation identified from the accessory archaeopyle sutures: 4", 6", + ai. Hypocystal paratabulation unknown.
Archaeopyle: Type (tA), involving four apicals as free, simple, polyplacoid operculum. Accessory archaeopyle sutures formed between the precingular paraplate series.
Paracingulum: Undifferentiated.
Parasulcus: Undifferentiated.

Dimensions:
Diameter (45) 37.8 (32) µm. Process length (5) 3 (2) µm.