Hexadelus archus


Classification: ntax_cenozoic -> Braarudosphaerales -> Braarudosphaeraceae -> Hexadelus -> Hexadelus archus
Sister taxa: H. archus

Taxonomy:

Citation: Hexadelus archus Shamrock & Watkins 2012
Rank: Species

Distinguishing features: Hexagonal formed of 6 flat plates, each an eqiulateral triangle

Farinacci & Howe catalog pages: H. archus *

Search data:
TagsLITHS: nannolith-radiate, triangular, polygonal, CROSS-POLARS: T-prominent,
MetricsLith size: 3->7┬Ám; Segments: 6->6;
Data source notes: lith size (diameter) from OD
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP21 zone (32.92-34.44Ma, top in Rupelian stage). Data source: Shamrock & Watkins 2012
First occurrence (base): within NP19-20 zone (34.44-36.97Ma, base in Priabonian stage). Data source: Shamrock & Watkins 2012

Plot of occurrence data:

References:

Shamrock, J. L. & Watkins, D. K. (2012). Eocene calcareous nannofossil biostratigraphy and community structure from Exmouth Plateau, Eastern Indian Ocean (ODP Site 762). Stratigraphy. 9(1): 1-11. gs


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Hexadelus archus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 26-2-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=712 Go to Archive.is to create a permanent copy of this page - citation notes



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