Nannotax3 - ntax_non_cocco - Orthopithonella

Orthopithonella


Classification: ntax_non_cocco -> Dinophytes -> Thoracosphaeraceae -> Radial wall -> Orthopithonella
Sister taxa: Bitorus, Caracomia, Congruentia, Echinodinella, Leonella, Orthopithonella, Orthotabulata, Ruegenia

Daughter taxa (time control age-window is: 0-800Ma)
Orthopithonella aequilamellata

Orthopithonella aspera

Orthopithonella collaris

Orthopithonella compsa

Orthopithonella congruens

Orthopithonella duplicata

Orthopithonella geometrica

Orthopithonella globosa

Orthopithonella gustafsonii

Orthopithonella minuta

Orthopithonella misurinae

Orthopithonella multipora

Orthopithonella ornata

Orthopithonella porata

Orthopithonella porifera

Orthopithonella pycnothecata

Orthopithonella reticulata

Orthopithonella sp.

Orthopithonella veeversii

Orthopithonella weileri

Taxonomy:

Citation: Orthopithonella Keupp, in Keupp & Mutterlose 1984
Rank: Genus
Type species: Orthopithonella gustafsonii (Bolli) Lentin & Williams 1984

Catalog entries: Orthopithonella *


Morphology: Original description of Keupp & Mutterlose: Zysten mit überwiegend einfachen Kalkwänden, die aus blockigen bis stengeligen Kalzit-Kristallen streng mit radialer Anordnung (c-Achse normal zur Oberfläche) aufgebaut sind. Im allgemeinen ohne Paratabulation Hierzu gehören die unterkretazischen Artengruppen: Pithonella gustafsoni BOLLI 1974 (vgl. KEUPP 1981:20), Pithonella porata KEUPP 1982 (vgl. KEUPP 1981: 20-26).

English translation: Cysts with predominantly simple calcareous walls, constructed of columnar to blocky calcite crystals with strictly radial orientation (c-axis normal to the surface). In general without paratabulation. These include the Lower Cretaceous species groups: Pithonella gustafsoni BOLLI 1974 (cf. KEUPP 1981:20), Pithonella porata KEUPP 1982 (cf. KEUPP 1981: 20-26).

Geological Range:
Last occurrence (top): within Messinian Stage (5.33-7.25Ma, top in Messinian stage). Data source: Total of range of species in this database
First occurrence (base): within Carnian Stage (228.35-237.00Ma, base in Carnian stage). Data source: Total of range of species in this database

References:

Keupp, H. & Mutterlose, J. (1984). Organismen-Verteilung in den D-Beds von Speeton (Unterkreide, England) unter besonderer Berücksichtigung der kalkigen Dinoflagellaten-Zysten. Facies. 10: 153-178. gs

Missing or ambiguous references: Lentin & Williams 1984;


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Orthopithonella compiled by Jeremy R. Young viewed: 8-12-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=20234 Go to Archive.is to create a permanent copy of this page - citation notes



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