Nannotax3 - ntax_cenozoic - Nannolith genera inc sed Nannotax3 - ntax_cenozoic - Nannolith genera inc sed

Nannolith genera inc sed


Classification: ntax_cenozoic -> Nannolith families inc sed -> Nannolith genera inc sed
Sister taxa: Ceratolithaceae, Lapideacassaceae, Lithostromationaceae, Nannolith genera inc sed, Rhomboasteraceae

Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa
extant genera
Ericiolus
Nannoliths, miniscule (<1 µm), formed of 3 nearly co-planar rays, often with a distal process. Cells monomorphic, often saddle-shaped, with long flagella and haptonema.
Ericiolus aspiphorus
Ericiolus multistellatus
Ericiolus pusillus
Ericiolus frigidus
Ericiolus spiculiger
Ericiolus bendifii
Ericiolus mattioliae
Ericiolus sheldoniae
Ericiolus sp.

Florisphaera
Coccoliths formed of single angular calcite unit, coccospheres flower-like
Florisphaera profunda
Florisphaera sp.

Pileolosphaera
Coccosphere formed of a few cap-shaped nannoliths
Pileolosphaera longistirpes

Extinct genera
Goniolithus
Small to medium pentagonal liths, with narrow rim and granular central area plate. Dark image in LM.
Goniolithus fluckigeri
Goniolithus sp.

Nannoturba

Nannoturba joceliniae
Nannoturba jolotteana
Nannoturba robusta
Nannoturba spinosa
Nannoturba sp.

Minylitha
Nannoliths kite-shaped plates with raised margin on both sides
Minylitha convallis
Minylitha cancellata
Minylitha sp.

Unidentified nannoliths


Taxonomy:

Citation: Nannolith genera incertae sedis
taxonomic rank: informal group of genera

Distinguishing features:
Parent taxon (Nannolith families inc sed): Haptophytes forming calcareous structures not obviously homologous with heterococcoliths, holococcoliths, or discoasteralids
This taxon: Three apparently unique genera, not-included in described families

Farinacci & Howe catalog pages: Nannolith genera inc sed [no catalog entry yet]

Search data:
Lith size: 0->0µm;
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 ranges of the species in this database
First occurrence (base): within Coniacian Stage (85.70-89.39Ma, base in Coniacian stage). Data source: Total of ranges of species in this database

Plot of occurrence data:

References:


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Nannolith genera inc sed compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 25-4-2024

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=884 Go to Archive.is to create a permanent copy of this page - citation notes
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