Hexalithus strictus


Classification: ntax_mesozoic -> Braarudosphaerales -> Transitional genera -> Hexalithus -> Hexalithus strictus
Sister taxa: H. gardetiae, H. noeliae, H. strictus, H. sp.

Distinguishing features: Elements with straight edges.


Taxonomy:

Citation: Hexalithus strictus Bergen, 1994
Rank: Species

Farinacci & Howe catalog pages: H. strictus *

Distinguishing features: Elements with straight edges.


Morphology: Bergen (1994) separated this species from H. noeliae based on it have straight edges/a hexagonal outline. Varol & Bowman (2019) instead separated it based on it having one element larger.

Search data:
TagsLITHS: nannolith-radiate, polygonal, CA: closed,
CSPH: equant, monomorphic, CROSS-POLARS: T-prominent,
MetricsLith size: 5->6µm; Segments: 6->6;
Data source notes: original description & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Early Berriasian Substage (143.57-145.01Ma, top in Berriasian stage). Data source: Bergen, 1994 (original description)
First occurrence (base): within Early Berriasian Substage (143.57-145.01Ma, base in Berriasian stage). Data source: Bergen, 1994 (original description)

Plot of occurrence data:

References:

Bergen, J. A. (1994). Berriasian to early Aptian calcareous nannofossils from the Vocontian Trough (SE France) and Deep Sea Drilling Site 534: new nannofossil taxa and a summary of low-latitude biostratigraphic events. Journal of Nannoplankton Research. 16(2): 59-69. gs V O

Varol, O. & Bowman, A. R. (2019). Taxonomic revision of selected Late Jurassic (Tithonian) calcareous nannofossils and the application of mobile mounting. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 291: 65-87. gs


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Hexalithus strictus 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=10529 Go to Archive.is to create a permanent copy of this page - citation notes



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