- Type images:
type image: P. sphinx
From Suzuki Paleotax db:
1874 Pterocanium (?) sphinx n. sp. Ehrenberg p. 255
1876 Pterocanium (?) sphinx Ehrenberg Ehrenberg p. 82-83, pl. 17, fig. 5
1887 Pteropilium sphinx (Ehrenberg) Haeckel p. 1443
1972 Stichopilidium sphinx (Ehrenberg) Petrushevskaya & Kozlova p. 552, pl. 27, fig. 1
1977 Pteropilium sphinx (Ehrenberg) Riedel & Sanfilippo pl. 7, fig. 10
1992 Theopodium (?) sp. aff. Pterocanium sphinx Ehrenberg Nishimura p. 356, pl. 7, fig. 12
2009 Pterocanium sphinx Ehrenberg [Ehrenberg collection] Ogane et al. pl. 1, figs. 4a-4d, pl. 97, fig. 4a-b
2009 Pterocanium sphinx Ehrenberg [Ehrenberg collection] Ogane et al. pl. 46, figs. 2a-d, 3a-c
Catalog entries: Pterocanium sphinx
type image: P. sphinx
Translated description: [Smooth, four-segmented; cephalis subglobose, unarmed, porous and with a median decurrent rib. Second segment slightly swollen, sub-compressed, with small sparse pores in rows. Third segment broader, swollen, tricarinate, with quincuncial pores, the ribs passing at the base into long, backwardly-directed winged spines, the wings porous. Fourth segment cylindrical, with larger pores, truncate and open posteriorly, bearing the wings fixed above. Total length without spines 160 µ, of cephalis 19 µ, of second segment 26 µ, of third segment 62 µ, of fourth segment 56 µ, of spine 120 µ. Width of third segment 80 µ. 2 1/2-3 pores in 23 µ. (Translated from Latin by E.M.R. and W.R.R.)]
Geological Range:
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:
References:
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Stichopilidium sphinx compiled by the radiolaria@mikrotax project team viewed: 22-7-2026
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