pforams@mikrotax - Chilostomellidae

pforams@mikrotax - Chilostomellidae pforams@mikrotax - Chilostomellidae

Chilostomellidae

Classification: pf_mesozoic -> Chilostomellidae
Sister taxa: Guembelitriidae ⟩⟨ Heterohelicidae ⟩⟨ Planomalinidae, Globigerinelloididae, Schackoinidae ⟩⟨ Conoglobigerinidae, Chilostomellidae, Favusellidae, Praehedbergellidae, Hedbergellidae, Rugoglobigerinidae, Rotaliporidae, Globotruncanidae, hidden

Daughter taxa (time control age-window is: 0-800Ma)				Granddaughter taxa
			Gubkinella	Gubkinella graysonensis Gubkinella sp.

Taxonomy

Citation: Chilostomellidae Brady 1881

Rank: Family

Original description: Test calcareous, finely perforate. With Reuss's genera Chilostomella and Allomorphina, which together form his family Cryptostegia, I have associated Seguenza's genus Ellipsoidina. The anomalous characters of the latter, viewed as a Nodosarian, I pointed out many years ago, and had I then known the genus Chilostomella by anything more than figures, I should have suggested the present position for it. The primary difference in the structure of these two types consists in the fact that in Chilostomella the segments alternate, the attachment to each other being at one side, and the aperture first at one end and then at the other, whilst in Ellipsoidina the attachment is at the base, the segments grow in the same direction, and consequently the aperture is always at the same end.

Entries in the Catalog of original descriptions: Chilostomellidae

Geological Range:
Last occurrence (top): at top of Albian Stage (100% up, 100.5Ma, in Albian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Albian Stage (0% up, 113Ma, in Aptian stage). Data source: Total of range of species in this database

Plot of range and 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: pf_mesozoic

References:

Brady, H. B. (1881a). Notes on some reticularian Rhizopoda of the Challenger Expedition. Part III. Quarterly Journal of Microscopical Science. 21: 31-71. gs V O

Chilostomellidae compiled by the pforams@mikrotax project team viewed: 25-3-2023

Taxon Search:

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AphiaID: 111916 Nomenclatural data on WoRMS
Short stables page link: https://mikrotax.org/pforams/index.php?id=110039 Go to Archive.is to create a permanent copy of this page - citation notes

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