Nannotax3 - ntax_cenozoic - Papposphaera HOL

Papposphaera HOL

Classification: ntax_cenozoic -> Holococcoliths -> open-tube -> Papposphaera HOL
Sister taxa: Calicasphaera, Papposphaera HOL, Trigonaspis

Daughter taxa (time control age-window is: 0-800Ma)
				Papposphaera arctica HOL Coccosphere elongate, varimorphic, CFCs higher and asymmetric, liths are only slightly widened distally.
				Papposphaera polybotrys HOL Coccosphere, spherical, dimorphic, CFCs larger and closed distally. Liths goblet-shaped, sub-circular base, narrow stem strongly flaring distally.
				Papposphaera sagittifera HOL Coccosphere spherical, varimorphic, tubes higher at flagellar pole. Coccoliths with tube, flaring distally.
				Papposphaera sarion HOL Coccosphere subspherical, varimorphic, tubes higher at flagellar pole. Coccoliths with long tube, weakly flaring distally
				Papposphaera sp. HOL

Taxonomy:

Citation: Papposphaera HOL

Rank: Genus

Type species:

Synonyms:

Turrisphaera Manton, Sutherland & Oates 1976 (Type species was T. borealis).

These holococcoliths were originally described as a discrete genus, Turrisphaera, but they are now known to be fromed on the alternate life-cycle phase of Papposphaera.

Distinguishing features: Tower-like holococcoliths formed from hexagonal crystallite groups.

Farinacci & Howe catalog pages: Turrisphaera *

Biology & life-cycles: All the described holococcolith species have extremely similar cocoliths and have been shown to form associations with Papposphaera heterococcolith phases.

See also: Papposphaera ;

Search data:

Tags	LITHS: holococcolith, elliptical, cylindrical, hollow, CA: vacant, process, CROSS-POLARS: V-prominent, R-prominent,
Metrics	Lith size: 1->3.5µm; Coccosphere size: 7->15µm;

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 top of No known fossil record modern (100% up, 0Ma, in "Holocene" 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. See also: customisable plot Parent: open-tube

References:

Manton, I., Sutherland, J. & Oates, K. (1976b). Arctic coccolithophorids: two species of Turrisphaera gen. nov. from West Greenland, Alaska, and the Northwest Passage. Proceedings of the Royal Society of London, Series B: Biological Sciences. 194: 179-194. gs

Papposphaera HOL compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 4-3-2021

Taxon Search:

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1008 Go to Archive.is to create a permanent copy of this page - citation notes

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