radiolaria - rads_cenozoic - Theopiliidae <title>radiolaria - rads_cenozoic - Theopiliidae


Classification: rads_cenozoic -> Plagiacanthidae -> Theopiliidae
Sister taxa: Lophophaenidae, Plagiacanthidae (ss), Plagiacanthidae inc sed, Sethoperidae, Sethophormididae, Theopiliidae
Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa

neptune records: 43
Clathrocycloma capitaneum
Clathrocycloma catherinea
Clathrocycloma parcum
Clathrocycloma sp.


neptune records: 97
Eucecryphalus cervus
Eucecryphalus clinatus
Eucecryphalus craspedota
Eucecryphalus emmae
Eucecryphalus europae
Eucecryphalus gegenbauri
Eucecryphalus petrushevskaae
Eucecryphalus sestrodiscus
Eucecryphalus tricostatus
Eucecryphalus sp.


neptune records: 112
Lampromitra callistoma
Lampromitra coronata
Lampromitra cracenta
Lampromitra danaes
Lampromitra pentalactis
Lampromitra quadricuspis
Lampromitra schultzei
Lampromitra spinosiretis
Lampromitra tiara
Lampromitra sp.


Citation: Haeckel, 1881
Rank: family (new classif)
Type species: Theopilium Haeckel 1881
Taxonomic discussion: This family is part of the revised classification system being developed by Prof. Suzuki and colleagues

Catalog entries: Lampromitridae [no catalog entry yet]


Distinguishing features:
Parent taxon (Plagiacanthidae):
This taxon: Wide conical 2 segmented forms with a small simple subspherical cephalis. External cephalic spines usually cylindrical in cross section, thorax termination usually without a peristome or skirt.


as Theopilida in Haeckel 1881: Tricystida aperta triradiata. De Wever et al. 2001: Hat-shaped to helmet-conical nassellarians consiting usually of two to three segments. Cephalis simple, without ventral tube or well marked arches.


Biogeography and Palaeobiology

Similar species

Geographic distribution


Phylogenetic relations

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant. Data source: Total of range of species in this database
First occurrence (base): at base of Aquitanian Stage (0% up, 23Ma, in Aquitanian stage). Data source: Total of range of species in this database

Plot of occurrence data:



Theopiliidae compiled by the radiolaria@mikrotax project team viewed: 7-2-2023

Taxon Search:
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AphiaID: not found
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