Nannotax3 - ntax_cenozoic - Coccolith families inc sed

Nannotax3 - ntax_cenozoic - Coccolith families inc sed Nannotax3 - ntax_cenozoic - Coccolith families inc sed

Coccolith families inc sed

Classification: ntax_cenozoic -> Coccolith families inc sed
Sister taxa: Isochrysidales, Coccolithales, Zygodiscales, Syracosphaerales, Coccolith families inc sed, Mesozoic Survivors ⟩⟨ Holococcoliths, Braarudosphaerales, Discoasterales, Nannolith families inc sed, hidden

Daughter taxa (time control age-window is: 0-800Ma)		Granddaughter taxa
	Alisphaeraceae Heterococcoliths asymetric, arranged in meridional rows on coccosphere; V-unit forms flange, R-unit basal. Also nannolith phase "Polycrater" with quadrate aragonitic liths.	Alisphaera Canistrolithus Polycrater phase
	Papposphaeraceae Narrow-rimmed muroliths, mostly with prominent central structures.	Papposphaera Pappomonas Balaniger Formonsella Quaternariella Ventimolina Wigwamma Pseudowigwamma Kataspinifera Picarola Vexillarius Pocillithus
	Umbellosphaeraceae Placolith-like with distal shield much larger than proximal, predominantly formed from R-units, V-units vestigial.	Umbellosphaera
	narrow rimmed placoliths Diverse group of coccoliths with narow placolith rims and variable central structures, usually showing four-fold symmetry.	Calyptrosphaera sphaeroidea HET Navilithus Placorhombus Tetralithoides Turrilithus
	Coccolith genera inc sed Heterococcolith genera which cannot be assigned to any family	Aliculosphaera Biantholithus Camuralithus Centumgemina Craterolithus Ellipsolithus Gladiolithus Ilselithina Leesella Luminocanthus Pedinocyclus Petasus
	Unidentified heterococcoliths Specimens which cannot be assigned to established taxa

Taxonomy:

Citation: Coccolith families incertae sedis – informal, sensu Young & Bown 1997

Rank: informal group of families

Distinguishing features:
Parent taxon (ntax_cenozoic): Extant coccolithophores and Cenozoic calcareous nannofossils - Mesozoic nannofossils are in a separate module
This taxon: 2N: Various heterococcolith groups not obviously related to the well-defined orders
N: mostly unknown

Farinacci & Howe catalog pages: Coccolith families inc sed [no catalog entry yet]

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 range of species in this database
First occurrence (base): at base of Danian Stage (0% up, 66Ma, in Danian 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: ntax_cenozoic

References:

Young, J. R. & Bown, P. R. (1997). Cenozoic calcareous nannoplankton classification. Journal of Nannoplankton Research. 19(1): 36-47. gs V O

Coccolith families inc sed compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-3-2023

Taxon Search:

Advanced Search

AphiaID: not found
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=311 Go to Archive.is to create a permanent copy of this page - citation notes

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