Geological Range: Last occurrence (top): within Late Paleocene Sub-Epoch (55.96-59.24Ma, top in Thanetian stage). Data source: First occurrence (base): within Early Paleocene Sub-Epoch (61.61-66.04Ma, base in Danian stage). Data source:
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: Lophophaena
References:
Grigorjeva, (1975). (non viso) Radiolyarii verkhnego mela paleogena vostochnogo sklona Urala i Zaural'ya. (In) Novyie Miosporyi, Foraminiferyi, Ostrakodyi i Konodontyi Paleozoya i Mezozoya Urala. . 102-109. gs
Lophophaena mugaica compiled by the radiolaria@mikrotax project teamviewed: 22-1-2026