Catalog entries: Giraffospyris cyrillium
Original description: Shell generally rounded, inverted-conical basally. No sagittal constriction, and slight or no constriction between cephalis and thorax.
QTSagittal ring D-shaped, connected directly with the lattice shell posteriorly and apically. and separated from it anteriorly. Primary and secondary lateral bars well developed. Apical spine usually protrudes from shell surface as a short thorn.QTLattice shell moderately robust, with subcircular pores, and com-monly with few scattered thorns on the surface. Open base of inverted-conical thorax has no differentiated peristome except a less porous area terminated usually by an irregular number of short triangular teeth.
Last occurrence (top): within Paleogene Period (23.03-66.04Ma, top in Chattian stage). Data source: Lazarus et al. 2015 - "P age group"
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Lazarus et al. 2015 - "P age group"
Plot of occurrence data:
Giraffospyris cyrillium compiled by the radiolaria@mikrotax project team viewed: 20-1-2021
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