Nannotax3 - ntax_mesozoic - Laguncula

Laguncula


Classification: ntax_mesozoic -> Heterococcoliths inc sedis -> globular inc sedis -> Laguncula
Sister taxa: Laguncula

Distinguishing features:
Parent taxon (globular inc sedis):
This taxon: Murolith coccoliths with large bulbous/spherical, hollow spines or processes.


Daughter taxa (time control age-window is: 0-800Ma)
Laguncula dorotheae
Small murolith coccoliths with large globular, hollow spines constructed from interlocking rhombiform elements.
Laguncula montrisouensis
Low rimmed coccolith with large, ?flat, flaring distal process with a curved upper surface.
Laguncula sp.
Specimens not identified to species level

Taxonomy:

Citation: Laguncula Black, 1971
Rank: Genus
Type species: Laguncula dorotheae Black, 1971

Farinacci & Howe catalog pages: Laguncula *

Distinguishing features:
Parent taxon (globular inc sedis):
This taxon: Murolith coccoliths with large bulbous/spherical, hollow spines or processes.


Morphology:


Size:


Ecology & Biogeography


Biology & life-cycles

Phylogenetic relations

Search data:
LITHS: murolith, circular, cylindrical, hollow, CA: process,
Lith size: 5->10µm;
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

Geological Range:
Last occurrence (top): at top of Cenomanian Stage (100% up, 93.9Ma, in Cenomanian stage). Data source: Total of range of species in this database
First occurrence (base): in lower part of Aptian Stage (25% up, 123Ma, in Aptian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Black, M. (1971b). Problematical Microfossils from the Gault Clay. Geological Magazine. 108(4): 325-327. gs V O


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Laguncula compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 29-11-2022

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10550 Go to Archive.is to create a permanent copy of this page - citation notes



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