Catalog entries: Prunopyle frakesi
Original description: Cortical shell prune-shaped, thick-walled; pores small, circular, tubelike, of uniform size, evenly distributed. Medullary shell consisting of a spiral, dense, spongy disk (plate 1, figures 4, 6) at the center and a loose meshwork (plate 1, figure 5) at the margin. Pylome small circular, and surrounded by 7-12 conical spines of variable lengths.
(Based on 35 specimens from 274-21-3, 54-64cm.; 274-21, CC; 274-22, CC; and 274-23, CC.)
Major axis of shell 270-342µ. Minor axis of shell 198-297.Ratio of major axis to minor axis 1.12-1.30. Distinguishing characters (rw): This species differs from other species of this genus in having a spongy core and small tubelike pores on the cortical shell.
Similar species: frakesi
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:
Larcopyle frakesi compiled by the radiolaria@mikrotax project team viewed: 18-1-2021
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