From Suzuki Paleotax db:
1998 Lophocyrtis (Apoplanius) keraspera n. sp. Sanfilippo & Caulet p. 14, pl. 3A, figs. 13-15; pl. 3B, figs. 12-14; pl. 6, figs. 9-12
Catalog entries: Lophocyrtis keraspera
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Geological Range:
Last occurrence (top): within Middle Eocene Sub-Epoch (37.75-47.84Ma, top in Bartonian stage). Data source:
First occurrence (base): within Middle Eocene Sub-Epoch (37.75-47.84Ma, base in Lutetian stage). Data source:
Plot of occurrence data:
Sanfilippo, A. & Caulet, J. (1998). Taxonomy and evolution of Paleogene Antarctic and tropical Lophocyrtid radiolarians. Micropaleontology. 44(1): 1-43. gsReferences:

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Lophocyrtis keraspera compiled by the radiolaria@mikrotax project team viewed: 8-6-2026
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