Diantholitha


Classification: Coccolithophores -> Discoasterales -> Fasciculithaceae -> Diantholitha
Sister taxa: Diantholitha, Fasciculithus, Gompholithus, Lithoptychius,

Daughter taxa: (blue => in age window 0-800Ma)
See generic diagnosis

Taxonomy:

Citation: Diantholitha Aubry in Aubry et al. 2011
Rank: Genus
Type species: Diantholitha mariposa Rodriguez & Aubry, in Aubry et al. 2011
Notes & discussion: This is a readily identified nannolith and quite distinct from the other genera included in the Fasciculithaceae. The species are less well differentiated.

Distinguishing features: Squat fasciculiths divided into sub-equal upper and lower cycles with different optical orientations. Conical openings on both sides, no fenestrae

Farinacci & Howe catalog pages: Diantholitha *

Search data:
TagsLITHS: nannolith-radiate, cylindrical, circular, RIM: tiered,
CSPH: not known, V-UNITS: lower-tier, R-UNITS: upper-tier, DETAILS: isogyres oblique,
MetricsLith size: 5->9┬Ám;
Sources:
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: Confined to a short interval within NP4  - this is best documented in Monechi et al. 2013, who indicate the range is approximately equivalent to magnetochron C27n
Last occurrence (top): near top of Danian Stage (87% up, 62.2Ma, in Danian stage). Data source: Total of range of species in this database
First occurrence (base): in upper part of Danian Stage (83% up, 62.4Ma, in Danian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Aubry, M. P., Bord, D. & Rodriguez, O. (2011). New taxa of the Order Discoasterales Hay 1977. Micropaleontology. 57(3): 269-287. gs

Aubry, M. -P., Rodriguez, O., Bord, D., Godfrey, L., Schmitz, B. & Knox, R. W. O. B. (2012). The first radation of the Fasciculiths: Morphologic adaptations of the coccolithophores to oligotrophy. Australian Journal of Earth Sciences. 105(1): 29-38. gs

Monechi, S., Reale, V., Bernaola, G. & Balestra, B. (2013). The Danian/Selandian boundary at Site 1262 (South Atlantic) and in the Tethyan region: Biomagnetostratigraphy, evolutionary trends in fasciculiths and environmental effects of the Latest Danian Event. Marine Micropaleontology. 98(1): 28-40. gs


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Diantholitha compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 16-9-2019

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=433 Go to Archive.is to create a permanent copy of this page - citation notes



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