Nannotax3 - ntax_mesozoic - Quadrum sp.

Quadrum sp.


Classification: ntax_mesozoic -> Braarudosphaerales -> Polycyclolithaceae -> Quadrum -> Quadrum sp.
Sister taxa: Q. gartneri, Q. svabenickae, Q. bengalensis ⟩⟨ Q. intermedium, Q. eptabrachium, Q. octobrachium, Q. eneabrachium, Q. giganteum, Q. sp.

Distinguishing features:
Parent taxon (Quadrum): Stellate to cubiform nannoliths with walls formed from two cycles of 4-9 elements and no central opening or diaphragm. When cubiform, the elements are joined along sutures that go out to the mid-point of the 'cube' edges.
This taxon: Specimens not identified to species level


Taxonomy:

Citation: Quadrum sp.
Rank: generic level id

Farinacci & Howe catalog pages:

Distinguishing features:
Parent taxon (Quadrum): Stellate to cubiform nannoliths with walls formed from two cycles of 4-9 elements and no central opening or diaphragm. When cubiform, the elements are joined along sutures that go out to the mid-point of the 'cube' edges.
This taxon: Specimens not identified to species level


Morphology:

We are using this category for images of specimens which can be identified to generic level but have not been definitively assigned to a single species.

Size:

Search data:
TagsLITHS:
MetricsLith size: 0->0┬Ám;
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within (-Ma, top in "Holocene" stage). Data source:
First occurrence (base): within (-Ma, base in "Holocene" stage). Data source:

Plot of occurrence data:

References:


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Quadrum sp. compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 13-8-2022

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10974 Go to Archive.is to create a permanent copy of this page - citation notes



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