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Current identification:
Original Description
Radial proportion of the four spheres = 1: 3: 11: 13. Both medullary shells with small, regular, circular pores; inner cortical shell with regular, hexagonal pores; from the hexagon-corners arise small, radial by-spines, which at equal distances from the centre send out forked tangential branches, three from each spine, and by communication of these form the outer, delicate, cortical shell. Four main spines nearly as long as the shell diameter, three-sided prismatic, with four to six verticils of ramified lateral branches, each verticil composed of three forked branches, which ramify again.
Diameter of the four shells - (A) 0.26, (B) 0.22, (C) 0.06, (D) 0 02; length of the spines 0.24.
Editors' Notes
There was no illustration of this species in Haeckel (1887)
Stratigraphic information for LM21 from Riedel, 1959, p.287.
Haeckel, E (1887). 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 year 1873-1876, Zoology. 18: 1-1803. gs Riedel, W. R. (1959). Oligocene and Lower Miocene Radiolaria in tropical Pacific sediments. Micropaleontology. 5(3): 285-302. gsReferences:
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Cromyostaurus verticillatus compiled by the radiolaria@mikrotax project team viewed: 24-2-2021
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