Micrantholithus entaster


Classification: ntax_cenozoic -> Braarudosphaerales -> Braarudosphaeraceae -> Micrantholithus -> Micrantholithus entaster
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 entaster Bramlette & Sullivan 1961
Rank: Species
Variants: Micrantholithus fornicatus Martini 1961 - another species with short rays described from the Danian, it lacks the central star but is otherwise similar.

Distinguishing features: Medium sized Micrantholithus with deeply indented sides and elevated central star

Farinacci & Howe catalog pages: M. entaster * , M. fornicatus *

Search data:
TagsLITHS: nannolith-radiate, pentagonal, star-shaped, CA: process, CROSS-POLARS: T-prominent,
MetricsLith size: 9->20┬Ám; Segments: 5->5; Liths per sphere: 12->12
Data source notes: lith size (diameter) from OD; 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 Paleocene Epoch (55.96-66.04Ma, top in Thanetian stage). Data source: Bramlette & Sullivan 1961
First occurrence (base): within Paleocene Epoch (55.96-66.04Ma, base in Danian stage). Data source: Bramlette & Sullivan 1961

Plot of occurrence data:

References:

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


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Micrantholithus entaster compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 17-6-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=864 Go to Archive.is to create a permanent copy of this page - citation notes



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