Emiliania


Classification: Coccolithophores -> Isochrysidales -> Noelaerhabdaceae -> Emiliania
Sister taxa: Emiliania, Gephyrocapsa, Pseudoemiliania, Reticulofenestra, Noelaerhabdus, Bekelithella, Pyrocyclus,

Daughter taxa: (blue => in age window 0-800Ma) Granddaughter taxa
See generic diagnosis (monospecific)

Specimens which cannot be assigned to established species yet

Taxonomy:

Citation: Emiliania Hay & Mohler, in Hay et al., 1967
Rank: Genus
Type species: Pontosphaera huxleyi Lohmann 1902

Distinguishing features: No bridge, slits between distal shield elements

Farinacci & Howe catalog pages: Emiliania *


Morphology remarks: Coccoliths with slits between all distal shield, and some proximal shield, elements; no bridge.

Most likely ancestor: Gephyrocapsa - at confidence level 5 (out of 5). Data source: Sugested by many authors, e.g. McIntyre and strongly supported by molecular genetic and data (e.g. Bendif et al. 2014).

Search data:
TagsLITHS: placolith, skeletal, elliptical, RIM: slits, CA: grill, vacant,
CSPH: spherical, monomorphic, V-UNITS: none, R-UNITS: all, c-str, distal shield, prox shield, tube, DETAILS: ca_conjunct, isogyres kinked, isogyres oblique, rim-unicyclic,
MetricsLith size: 2->5┬Ám;
Sources:
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): in upper part of Ionian Stage (75% up, 0.3Ma, in Ionian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Hay, W. W., Mohler, H. P., Roth, P. H., Schmidt, R. R. & Boudreaux, J. E. (1967). Calcareous nannoplankton zonation of the Cenozoic of the Gulf Coast and Caribbean-Antillean area, and transoceanic correlation. Transactions of the Gulf Coast Association of Geological Societies. 17: 428-480. gs

Young, J. R. (1998). Neogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 225-265. gs


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Emiliania compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-8-2019

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=532 Go to Archive.is to create a permanent copy of this page - citation notes



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