Original description: Tympanida with two simple horizontal rings of different sizes, connected by four divergent columellae.
Morphology: The genus Pseudocubus exhibits the characteristic form of an obelisk, or a truncated four-sided pyramid. The four edges of this obelisk, or the four "columellae," are the remaining parts of the two incomplete vertical rings; two opposite edges are the dorsal and ventral rod of the sagittal ring; the two alternate edges between these are the lateral rods of the frontal ring. The two horizontal rings, which become connected by the four divergent columellae, are the smaller mitral ring and the larger basal ring; both are either square or nearly circular. Size:
Biogeography and Palaeobiology
Similar species Geographic distribution Paleobiology Phylogenetic relations
Geological Range: Last occurrence (top): Extant. Data source: Total of range of species in this database First occurrence (base): at base of Aquitanian Stage (0% up, 23Ma, in Aquitanian stage). Data source: Total of range of species in this database
Plot of occurrence data:
Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Haeckel, E (1887a). Report on the Radiolaria collected by H.M.S. Challenger during the years 1873-1876. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873-1876. 18: 1-1803. gsO
Pseudocubus compiled by the radiolaria@mikrotax project teamviewed: 30-1-2023