Gephyrocapsa ornata


Classification: ntax_cenozoic -> Isochrysidales -> Noelaerhabdaceae -> Gephyrocapsa -> Gephyrocapsa ornata
Sister taxa: G. oceanica, G. muellerae, G. ornata, G. ericsonii, G. sp elevated bridge ⟩⟨ G. caribbeanica, G. omega, G. lumina, G. small, G. sp.

Taxonomy:

Citation: Gephyrocapsa ornata Heimdal, 1973
Rank: Species
Taxonomic discussion: Although rare this seems to be a discrete species. It has a very distinctive morphology and does not seem to intergrade with other species.

Distinguishing features: Similar to G. ericsonii but larger, with teeth around tube, much higher bridge; consistently high angle (within 70-80° from short axis).

Farinacci & Howe catalog pages: G. ornata *

Search data:
TagsLITHS: placolith, elliptical, CA: ca_conjunct, grill, bar,
CSPH: equant, monomorphic, CROSS-POLARS: rim-unicyclic, R-prominent,
MetricsLith size: 2.2->3µm; Coccosphere size: 4->5µm; Liths per sphere: 15->30
Data source notes: morphom data from Cros & Fortuño 2003 & illustrated specs
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: present in the plankton (Young et al. 2003)
First occurrence (base): within NN20 zone (0.29-0.44Ma, base in Ionian stage). Data source: [JRY rough estimate]

Plot of occurrence data:

References:

Cros, L. & Fortuño, J. -M. (2002). Atlas of northwestern Mediterranean coccolithophores. Scientia Marina. 66: 1-186. gs V O

Heimdal, B. R. (1973). Two new taxa of Recent coccolithophorids. “Meteor” Forschungsergebnisse, Reihe D, Biologie. 70-75. gs

Okada, H. & McIntyre, A. (1977). Modern coccolithophores of the Pacific and North Atlantic Oceans. Micropaleontology. 23(1): 1-55. gs

Young, J. R., Geisen, M., Cros, L., Kleijne, A., Probert, I. & Ostergaard, J. B. (2003). A guide to extant coccolithophore taxonomy. Journal of Nannoplankton Research, Special Issue. 1: 1-132. gs V O


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Gephyrocapsa ornata compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 7-3-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=615 Go to Archive.is to create a permanent copy of this page - citation notes



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