Hexalithus noeliae


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

Distinguishing features: Small (4-6 µm), elements with lobate edges.


Taxonomy:

Citation: Hexalithus noeliae Loeblich & Tappan, 1966
Rank: Species
Taxonomic discussion: Replacement name for Hexalithus hexalithus Noël, 1956.

Farinacci & Howe catalog pages: H. noelae * , H. hexalithus *

Distinguishing features: Small (4-6 µm), elements with lobate edges.

Search data:
TagsLITHS: nannolith-radiate, polygonal, CA: closed,
CSPH: equant, monomorphic, CROSS-POLARS: T-prominent,
MetricsLith size: 4->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: Bown & Cooper 1998
First occurrence (base): in lower part of NJ17b subzone (20% up, 148.9Ma, in Tithonian stage). Data source: Bown & Cooper 1998 (fig. 4) - secondary events

Plot of occurrence data:

References:

Bown, P. R. & Cooper, M. K. E. (1998). Jurassic. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 34-85. gs

Casellato, C. E. (2010). Calcareous nannofossil biostratigraphy of Upper Callovian - Lower Berriasian successions from the Souhern Alps, North Italy. Rivista Italiana di Paleontologia e Stratigrafia. 116(3): 357-404. gs V O

Loeblich, A. R. & Tappan, H. (1966). Annotated index and bibliography of the calcareous nannoplankton. Phycologia. 5: 81-216. gs

Noël, D. (1957). Coccolithes des terrains Jurassiques de l'Algérie. Publications du Service de la Carte Géologique de l'Algérie (Nouvelle Série) Bulletin. 8: 303-385. gs

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 noeliae compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-5-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10527 Go to Archive.is to create a permanent copy of this page - citation notes



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