radiolaria - rads_cenozoic

Theopiliidae

Classification: rads_cenozoic -> Plagiacanthidae -> Theopiliidae
Sister taxa: Lophophaenidae, Plagiacanthidae (ss), Plagiacanthidae inc sed, Sethoperidae, Sethophormididae, Theopiliidae,

Daughter taxa: (blue => in age window 0-800Ma)					Granddaughter taxa
				Lampromitra neptune records: 112	L. coronata L. cracenta L. danaes L. pentalactis L. quadricuspis L. schultzei L. spinosiretis L. tiara L. sp.

Taxonomy

Citation: Haeckel, 1881

Rank: family (new classif)

Type species: Theopilium Haeckel 1881

Notes & discussion: This family is part of the revised classification system being developed by Prof. Suzuki and colleagues

Catalog entries: Lampromitridae [no catalog entry yet]

Description

Distinguishing features: 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.

Morphology remarks:

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

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:

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
Neptune data: this is a higher taxon page so Neptune data is not plotted. For the customisable plot option go to a genus page Parent: Plagiacanthidae

References:

Theopiliidae compiled by the radiolaria@mikrotax project team viewed: 12-7-2020

Taxon Search:

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Short stable page link: http://mikrotax.org/radiolaria/index.php?id=206129 Go to Archive.is to create a permanent copy of this page - citation notes

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