Nannotax3 - ntax_main - Oblique wall Nannotax3 - ntax_main - Oblique wall

Oblique wall


Classification: ntax_main -> other groups -> Dinophytes -> Thoracosphaeraceae -> Oblique wall
Sister taxa: Tangential wall, Radial wall, Oblique wall, Possible Thoracosphaeraceae, Pithonellid, Calcispheres inc sedis, u. calcispheres

Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa
Calcicarpinum

Calcicarpinum bivalvum
Calcicarpinum perfectum
Calcicarpinum primum
Calcicarpinum tetraedricum
Calcicarpinum tetramurum

Melodomuncula

Melodomuncula berlinensis

Pernambugia

Pernambugia patata
Pernambugia tuberosa

Pirumella
Cysts without external paratabulation, often with double-layered calcareous walls, oyter wall formed of blocky rhomboheda, c-axes oblique to wall.

Retesphaera

Retesphaera diadema


Taxonomy:
Citation: Oblique wall
Taxonomic rank: informal group of genera

Synonyms:

Distinguishing features:
Parent taxon (Thoracosphaeraceae): Calcareous dinoflagellates
This taxon: Wall formed of crystals with oblique c-axes (Obliquipithonella s.l.)

Search data:
Lith size: 0->0µm;
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): Extant. Data source: Total of ranges of the species in this database
First occurrence (base): within Carnian Stage (227.30-237.00Ma, base in Carnian stage). Data source: Total of ranges of species in this database

Plot of occurrence data:

References:


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Oblique wall compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 21-7-2026

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=20222 Go to Archive.is to create a permanent copy of this page - citation notes



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