From Suzuki Paleotax db:
1971 Lychnocanium trifolium n. sp. Riedel & Sanfilippo p. 1595, pl. 3b, fig. 12, pl. 8, figs. 2, 3
1975 Lychnocanoma trifolium (Riedel et Sanfilippo) Ling p. 729, pl. 10, fig. 12
1984 Lychnocanium trifolium Riedel et Sanfilippo Nigrini & Lombari N121-122, pl. 24, figs. 3a, 3b
1985 Lychnocanoma trifolium (Riedel et Sanfilippo) Sanfilippo et al. p. 676-677, figs. 19.2a, 19.2b
Catalog entries: Lychnocanium trifolium
Original description: Cephalis spherical, poreless, bearing a conical or three-bladed apical horn. Collar stricture pronounced. Thorax campanulate, with smooth surface and subcircular pores generally arranged in groups of three separated by wide poreless areas. Three feet three-bladed, approximately straight, longer than the thorax.
Similar species
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:
Riedel, W. R. & Sanfilippo, A. (1971). Cenozoic Radiolaria from the western tropical Pacific, Leg 7. Initial Reports of the Deep Sea Drilling Project. 7: 1529-1666. gs Sanfilippo, A., Burckle, L. H., Martini, E. & Riedel, W. R. (1973). Radiolarians, diatoms, silicoflagellates and calcareous nannofossils in the Mediterranean Neogene. Micropaleontology. 19(2): 209-234. gsReferences:

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Lychnocanoma trifolium compiled by the radiolaria@mikrotax project team viewed: 22-7-2026
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