Geological Range: Last occurrence (top): within (-Ma, top in "Holocene" stage). First occurrence (base): within (-Ma, base in "Holocene" stage).
Plot of occurrence data:
Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
(NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Lophocyrtis
References:
Sanfilippo, A. & Caulet, J. (1998). Taxonomy and evolution of Paleogene Antarctic and tropical Lophocyrtid radiolarians. Micropaleontology. 44(1): 1-43. gs
Lophocyrtis keraspera compiled by the radiolaria@mikrotax project teamviewed: 24-6-2025