See generic diagnosis
Specimens which cannot be assigned to established species
| Daughter taxa (time control age-window is: 0-800Ma) | ||||
| | | | Jomonlithus littoralis See generic diagnosis |
| Jomonlithus sp. Specimens which cannot be assigned to established species | ||||
Taxonomy:
Distinguishing features:
Parent taxon (Hymenomonadaceae): 2N: cells motile, bearing muroliths with open central-area; proximal and distal flanges variably developed. Coccosphere large, monomorphic with many small coccoliths. Neritic.
N: non-calcifying.
This taxon: Murolith coccoliths with simple rim, partially calcified specimens show beaded ultrastructure.
Farinacci & Howe catalog pages: Jomonlithus [no catalog entry yet]
Phylogenetic relations: The genus Jomonlithus was described from a similar coastal environment to the Pleurochrysidaceae and Hymenomonadaceae and it is similar in basic morphology although the coccolith structure seems different. Its placement in the Hymonomonadaceae is based on molecular genetics data (Sa_ez et al., 2004).
| Tags | LITHS: murolith, elliptical, CA: vacant, CSPH: equant, monomorphic, |
| Metrics | Lith size: 1->1.5µm; Segments: 25->30; Coccosphere size: 10->12µm; Data source notes: data from Probert et al. 2014 |
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:
Inouye, I. & Chihara, M. (1983). Ultrastructure and taxonomy of Jomonlithus littoralis gen. et sp. nov. (Class Prymnesiophyceae), a coccolithophorid from the Northwest Pacific. Botanical Magazine, Tokyo. 96: 365-376. gsReferences:
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Jomonlithus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-1-2022
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=776 Go to Archive.is to create a permanent copy of this page - citation notes |
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