Nannotax3 - ntax_cenozoic - Hymenomonas krejcigrafii

Hymenomonas krejcigrafii

Classification: ntax_cenozoic -> Coccolithales -> Hymenomonadaceae -> Hymenomonas -> Hymenomonas krejcigrafii
Sister taxa: H. coronata, H. globosa, H. lacuna, H. roseola, H. krejcigrafii, H. sp.

Taxonomy:

Citation: Hymenomonas krejcigrafii Martini 1988

Rank: Species

Taxonomic discussion: The illustrated specimens do somewhat resemble modern Hymenomonas but the generic assignment is very tentative

Distinguishing features:
Parent taxon (Hymenomonas): Coccoliths with serated distal margin
This taxon: Fossil coccolith species of similar size and shape to modern Hymenomonas. Thick-walled, elliptical.

Farinacci & Howe catalog pages: H. krejcigrafii *

Ecology & Biogeography: Described from neritic sediments of the Paratethys - so the right sort of environment for fossil Hymenomonas

Search data:

Tags	LITHS: murolith, elliptical, CA: vacant,
Metrics	Lith size: 2->3µm; Data source notes: lith size from OD

The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Miocene Epoch (5.33-23.03Ma, top in Messinian stage). Data source: Martini 1988
First occurrence (base): within Miocene Epoch (5.33-23.03Ma, base in Aquitanian stage). Data source: Martini 1988

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

References:

Martini, E. (1988). Nannoplankton-Massenvorkommen in den Corbicula-(=Schichten mit Hydrobia inflata) und Hydrobienschichten des Oberrheingrabens, des Mainzer und des Hanauer Beckens (Miozän). Geologisches Jahrbuch. A110: 205-227. gs

Hymenomonas krejcigrafii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-1-2022

Taxon Search:

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=749 Go to Archive.is to create a permanent copy of this page - citation notes

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