radiolaria - rads_cenozoic - Actinommidae (ss) radiolaria - rads_cenozoic - Actinommidae (ss)

Actinommidae (ss)


Classification: rads_cenozoic -> Actinommidae -> Actinommidae (ss)
Sister taxa: Actinommidae (ss), Actinommidae inc sed, Astrosphaeridae, Centrocubidae, Excentroconchidae, Hexalonchidae, Hexastylidae, Pantanelliidae, Quinquecapsulariidae, Rhizosphaeridae, Saturnalidae, Spongosphaeridae, Stylosphaeridae
Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa
Acanthosphaera

neptune records: 7
Acanthosphaera actinota
Acanthosphaera bernardi
Acanthosphaera castanea
Acanthosphaera dodecastyla
Acanthosphaera macropora
Acanthosphaera pinchuda
Acanthosphaera tenuis
Acanthosphaera sp.

Actinomma

neptune records: 1090

Carposphaera

neptune records: 2
Carposphaera acanthophora
Carposphaera capillacea
Carposphaera magnaporylosa
Carposphaera modesta
Carposphaera nodosa
Carposphaera raiai
Carposphaera subbotinae
Carposphaera sp.

Cenosphaera

neptune records: 237

Conoactinomma

neptune records:
Conoactinomma undosa undosa
Conoactinomma sp.

Cromyechinus

neptune records: 11
Cromyechinus icosacanthus
Cromyechinus pycnopora
Cromyechinus sp.

Cromyomma

neptune records: 10
Cromyomma circumtextum
Cromyomma riedeli
Cromyomma villosum
Cromyomma sp.

Cyrtidosphaera

neptune records:
Cyrtidosphaera reticulata
Cyrtidosphaera sp.

Drymyomma

neptune records: 14
Drymyomma elegans
Drymyomma sp.

Ethmosphaera

neptune records:
Ethmosphaera conosiphonia

Haliommetta

neptune records: 110
Haliommetta miocenica
Haliommetta sp.

Liosphaera

neptune records:
Liosphaera antarctica
Liosphaera sp.

Lithomespilus

neptune records: 40
Lithomespilus mendosa
Lithomespilus sp.

Sphaeropyle

neptune records: 1011
Sphaeropyle antarctica
Sphaeropyle langii
Sphaeropyle mespilus
Sphaeropyle robusta
Sphaeropyle sp.

Thecosphaera

neptune records: 206

Thecosphaerella

neptune records: 85
Thecosphaerella agdaraensis
Thecosphaerella glebulenta
Thecosphaerella ptomatus
Thecosphaerella rotunda
Thecosphaerella sp.

Taxonomy

Taxonomic rank: family (new classifi
Taxonomic discussion:

Actinommidae (sensu stricto) - for all actinommids in the classical Riedel sense that do not clearly fall into one of the other, more restricted new families.  Note that several proposed new families, or older concepts such as Ethmosphaeridae Haeckel (also included in some newer family classifications), are not included yet in mikrotax.  Ethmosphaeridae for example was defined as for all forms with no major external spines.  It is not clear if the lack of  'major' external spines is a natural high taxonomic level character, and there are also many species with spines of intermediate size and thus dubious affinity.  Inconsistent usage of genus names for species both with, and without external spines further complicates assignment of genera.  Many species in 'Actinommidae ss'. may eventually be assigned to other families with further taxonomic study and formal revision in the literature. - dl

Catalog entries: Actinommidae

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Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant. Data source: Total of ranges of the species in this database
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Total of ranges of species in this database

Plot of occurrence data:

References:


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Actinommidae (ss) compiled by the radiolaria@mikrotax project team viewed: 11-4-2026

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=206112 Go to Archive.is to create a permanent copy of this page - citation notes



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