Back
Disphaerogena carposphaeropsis

From Fensome et al., 2019:
Disphaerogena carposphaeropsis Wetzel, 1933b, p.51, pl.4, fig.34. Emendation: Sarjeant, 1985b, p.141–142. Holotype: Wetzel, 1933b, pl.4, fig.34; Sarjeant, 1985b, pl.3, figs.1,4; Fensome et al., 1993a, fig.1 — p.1039; Dietz et al., 1999, fig.10,
no.1. Taxonomic junior synonym: Cyclapophysis monmouthensis, according to Sarjeant (1985b, p.141). Age: Late Cretaceous.

---------------------------------------------------------------------------------------------------

Translation O.Wetzel, 1933: Fensome et al., 1993

Original diagnosis: O.Wetzel, 1933, p.51
Spherical, somewhat perforated shell with several large processes which in part branch and, by means of rod- or wing-like elements, are distally connected in an irregular fashion. One of the two observed specimens under consideration is strongly damaged, but the other shows distinctly that an outer lattice-like shell or skin surrounds the organism or might also exist only as a fairly irregular trabeculate- or wing-complex with few large meshes. Brown coloured.

---------------------------------------------------------------------------------------------------

Emended diagnosis: Sarjeant, 1985, p.142
Chorate, skolochorate cysts of spheroidal to suboval ambitus. Apical horn always longer than antapical, but by a variable ratio (1.2:1 to 3:1). Both horns surrounded by a palisade of moderately long, fibrous processes. Precingular and postcingular processes longer, fused or linked by trabeculae distally to form an equatorial tunnel, indistinctly interrupted by the sulcus. Phragma two-layered, the inner layer considerably thicker than the outer; surface of phragma microreticulate, the process bases corresponding to nodes. Archaeopyle single-plate precingular, type P, formed by loss of paraplate 3".
Size: Overall diameter 140 µm, diameter of central body 65 µm, length of processes about 38 µm.
Feedback/Report bug