Bucanthus


Classification: Mesozoic -> Stephanolithiales -> Parhabdolithaceae -> Bucanthus
Sister taxa: Bucanthus, Calcivascularis, Crucirhabdus, Diductius, Mitrolithus, Parhabdolithus, Timorella, Umbria,

Distinguishing features: Protolith coccoliths with low, sloping rim; central area wide with offset central-cross.


Daughter taxa: (blue => in age window 0-800Ma)
Protolith coccoliths with low, sloping rim and wide central area spanned by an offset central cross. Bicyclic rim image in XPL.
Similar to B. decussatus, but smaller (<6 µm) and with symmetric cross
Specimens not identified to species level

Taxonomy:

Citation: Bucanthus Bown, 1987
Rank: Genus
Type species: Bucanthus decussatus Bown, 1987

Farinacci & Howe catalog pages: Bucanthus *

Distinguishing features: Protolith coccoliths with low, sloping rim; central area wide with offset central-cross.


Morphology remarks: Protolith coccoliths with low, sloping rim and wide central area spanned by an offset central cross. Bicyclic rim image in XPL.

Search data:
TagsLITHS: murolith, elliptical, CA: process, diagonal cross, V-UNITS: V-prominent, R-UNITS: R-prominent, DETAILS: ca_disjunct, rim-bicyclic,
MetricsLith size: 4->10µm;
Sources: size range of included species
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): at top of Kimmeridgian Stage (100% up, 152.1Ma, in Kimmeridgian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Pliensbachian Stage (0% up, 190.8Ma, in Pliensbachian stage). Data source: Total of range of species in this database

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

Bown, P. R. (1987a). Taxonomy, evolution, and biostratigraphy of Late Triassic-Early Jurassic calcareous nannofossils. Special Papers in Palaeontology. 38: 1-118. gs


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Bucanthus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-2-2020

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10135 Go to Archive.is to create a permanent copy of this page - citation notes



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