Classification: rads_cenozoic -> Pterocorythidae -> Theocyrtis
Sister taxa: Anthocyrtidium, Calocycletta, Lamprocyclas, Lamprocyrtis, Phormocyrtis, Podocyrtis, Pterocorys, Pterocorythidae inc sed, Tetracorethra, Theocorythium, Theocyrtis,
Daughter taxa: (blue => in age window 0-800Ma)

neptune records: 593

neptune records: 561

neptune records: 8

neptune records: 3

neptune records: 318

neptune records: 84

neptune records: 3

neptune records: 100

neptune records: 195

neptune records: 631


Citation: Theocyrtis Haeckel 1887
Rank: genus
Basionym: Theocyrtis

Catalog entries: Theocyrtis

Original description: Theocorida (vel Tricyrtida eradiata aperta) with cylindrical abdomen, and wide open truncate mouth. Cephalis with a single horn.


Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): at top of Piacenzian Stage (100% up, 2.6Ma, in Piacenzian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Danian Stage (0% up, 66Ma, in Danian stage). Data source: Total of range of species in this database

Plot of occurrence data:


Haeckel, E (1887). Report on the Radiolaria collected by H.M.S. Challenger during the years 1873-1876. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the year 1873-1876, Zoology. 18: 1-1803. gs


Theocyrtis compiled by the radiolaria@mikrotax project team viewed: 24-9-2020

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