Micrantholithus flos


Classification: ntax_cenozoic -> Braarudosphaerales -> Braarudosphaeraceae -> Micrantholithus -> Micrantholithus flos
Sister taxa: M. breviradiatus, M. disculus, M. flos ⟩⟨ M. astrum, M. entaster, M. excelsus, M. hebecuspis, M. minimus, M. pinguis, M. vesper ⟩⟨ M. attenuatus, M. mirabilis ⟩⟨ M. angulosus, M. bramlettei, M. bulbosus, M. crenulatus, M. tinus, M. sp.

Taxonomy:

Citation: Micrantholithus flos Deflandre in Deflandre & Fert, 1954
Rank: Species
Synonyms:
Taxonomic discussion: Comparable with Micrantholithus hoschulzii (Reinhardt, 1966) Thierstein, 1971 described from the Lower Cretaceous. Originally described in Deflandre 1950, but invalid as no description given so validated in Deflandre & Fert 1954.

Distinguishing features: Micrantholithus with relatively straight edges, sutures often raised

Farinacci & Howe catalog pages: M. flos * , B. undata * , M. truncus *

Search data:
TagsLITHS: nannolith-radiate, pentagonal, CROSS-POLARS: T-prominent,
MetricsLith size: 7->15µm; Segments: 5->5; Liths per sphere: 12->12
Data source notes: lith size (diameter) from ODs & illustrated specimens; lith numbers assumed from geometry
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP23 zone (29.62-32.02Ma, top in Rupelian stage). Data source: Bown 2005
First occurrence (base): within NP6 zone (58.97-59.54Ma, base in Selandian stage). Data source: [PRB rough estimate]

Plot of occurrence data:

References:

Bown, P. R. (2005d). Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). Journal of Nannoplankton Research. 27(1): 21-95. gs V O

Bown, P. R. (2016). Paleocene calcareous nannofossils from Tanzania (TDP sites 19, 27 and 38). Journal of Nannoplankton Research. 36(1): 1-32. gs V O

Bramlette, M. N. & Sullivan, F. R. (1961). Coccolithophorids and related nannoplankton of the Early Tertiary in California. Micropaleontology. 7(2): 129-188. gs

Deflandre, G. & Fert, C. (1954). Observations sur les coccolithophoridés actuels et fossiles en microscopie ordinaire et électronique. Annales de Paléontologie. 40: 115-176. gs

Stradner, H. (1959a). Die fossilen Discoasteriden Osterreichs. II. Erdoel-Zeitschrift. 75(12): 472-488. gs


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Micrantholithus flos compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 24-7-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=866 Go to Archive.is to create a permanent copy of this page - citation notes



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