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 are tetrads of spines - “caltrops”. Cells monomorphic, saddle-shaped, with long flagella and haptonema. 
E. frigidus
E. sp. Y
E. spiculiger
E. sp.

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

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

Mercedesia
Nannoliths triradiate. Cells monomorphic.
M. aspiphora
M. multistellata
M. pusilla

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

Nannoturba

N. joceliniae
N. jolotteana
N. robusta
N. spinosa
N. sp.

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

Unidentified nannoliths


Taxonomy:

Citation: Nannolith genera incertae sedis
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:
TagsLITHS:
MetricsLith 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 range of species in this database
First occurrence (base): at base of Coniacian Stage (0% up, 89.8Ma, in Turonian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:


nannotaxlogo400px

Nannolith genera inc sed compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-9-2021

Taxon Search:
Advanced Search

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



Comments (0)

No comments yet on this page. Please do add comments if you spot any problems, or have information to share

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics