Braloweria


Classification: Mesozoic -> Eiffellithales -> Chiastozygaceae -> Braloweria
Sister taxa: Amphizygus, Archaeozygodiscus, Gorkaea, Placozygus, Reinhardtites, Tranolithus, Zeugrhabdotus ⟩⟨ Chiastozygus ⟩⟨ Staurolithites, Diadorhombus, Rhabdophidites ⟩⟨ Ahmuellerella, Bukrylithus, Diloma, Heteromarginatus, Misceomarginatus, Monomarginatus, Vacherauvillius ⟩⟨ Braloweria, Clepsilithus, Crepidolithus, Loxolithus, Neocrepidolithus, Tubirhabdus

Distinguishing features: Loxoliths with central area filled with a tall, columnar to bulbous boss borne on a plate. Seen in side view. Spine has a thick wall, narrow axial canal and is formed from two crystallographically distinct units.


Daughter taxa: (blue => in age window 0-800Ma)
Braloweria boletiformis
Loxoliths with central area filled with a tall, columnar to bulbous boss borne on a plate. Seen in side view. Spine has a thick wall, narrow axial canal and is formed from two crystallographically distinct units.
Braloweria sp.
Specimens not identified to species level

Taxonomy:

Citation: Braloweria Crux, 1991
Rank: Genus
Type species: Parhabdolithus boletiformis (Black, 1972)

Farinacci & Howe catalog pages: Braloweria *

Distinguishing features: Loxoliths with central area filled with a tall, columnar to bulbous boss borne on a plate. Seen in side view. Spine has a thick wall, narrow axial canal and is formed from two crystallographically distinct units.

Search data:
TagsLITHS: murolith, elliptical, hollow, CA: ca_disjunct, plate, process, closed, CROSS-POLARS: rim-bicyclic, R-prominent,
MetricsLith size: 5->8µm;
Data source notes: size range of included species
The morphological data given here can be used on the advanced search page. See also these notes

See also: Percivalia bullata - another species with a very large bulbous spine;

Geological Range:
Last occurrence (top): in lower part of Albian Stage (37% up, 108.3Ma, in Albian stage). Data source: Total of range of species in this database
First occurrence (base): near base of Albian Stage (8% up, 112Ma, in Albian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Bown, P. R., Rutledge, D. C., Crux, J. A. & Gallagher, L. T. (1998). Early Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 86-131. gs

Crux, J. A. (1991a). Albian calcareous nannofossils from the Gault Clay of Munday’s Hill (Bedfordshire, England). Journal of Micropalaeontology. 10(203-221): -. gs V O


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Braloweria compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-10-2020

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10115 Go to Archive.is to create a permanent copy of this page - citation notes



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