Papposphaera lepida


Classification: Coccolithophores -> Coccolith families inc sed -> Papposphaeraceae -> Papposphaera -> Papposphaera lepida
Sister taxa: P. lepida, P. obpyramidalis, P. simplicissima, P. sagittifera, P. sarion, P. arctica, P. iugifera, P. heldalii, P. bourrellii, P. thomsenii, P. sp. type 1, P. sp. type 2, P. sp. type 3, P. sp. type 4, P. sp. type 5, P. sp. type 6, P. sp.,

Taxonomy:

Citation: Papposphaera lepida Tangen, 1972
Rank: Species

Distinguishing features: Central areas with axial cross;
Process 2-4 µm high, supporting flat cone of four large elements, these form an almost continuous outer layer to the coccosphere.

Farinacci & Howe catalog pages: Papposphaera lepida * , ,


Morphology remarks: Although described as monomorphic coccopshres often show significant variation in spine height and calyx diameter so they are perhaps better described as varimorphic. Some images suggest the coccoliths with taller nspines and larger calices may occur equatorially.

Size: Cell spherical, 4.5-7 µm, diameter of coccosphere 11-16 µm. Coccoliths, 1-1.5 µm long;

Biology & life-cycles: One combination coccosphere with a poorly preserved "Turrisphaera" type holococcolith observed (JRY unpubl.).

Search data:
TagsLITHS: murolith, elliptical, RIM: outer wall non-imbricate, rim-narrow, rim-top crenulate, CA: cross, cross-axial, PROCESS: calyx, spine,
CSPH: spherical, varimorphic, DETAILS: ca_disjunct,
MetricsLith size: 0.5->1.5µm; Coccosphere size: 4->8µm; Liths per sphere: 45->90
Sources: lith size (BC diameter) from Cros & Fortuño 2002; csph data from Cros & Fortuño 2003;
The morphological data given here can be used on the advanced search page. See also these notes

See also: Papposphaera HOL ;

Geological Range:
Last occurrence (top): Extant Data source: present in the plankton (Young et al. 2003)
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in stage). Data source: [JRY rough estimate]

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Papposphaera

    References:

    Tangen, K. (1972). Papposphaera lepida, gen. nov. n. sp., a new marine coccolithophorid from Norwegian coastal waters. Norwegian Journal of Botany. 19: 171-178. gs


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    Papposphaera lepida compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-7-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1012 Go to Archive.is to create a permanent copy of this page - citation notes



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