Lucianorhabdus turris


Classification: Mesozoic -> Holococcoliths -> Common genera -> Lucianorhabdus -> Lucianorhabdus turris
Sister taxa: L. cayeuxii, L. arcuatus, L. compactus, L. inflatus, L. maleformis, L. quadrifidus, L. salomonii, L. boudagherfadeliae, L. tabernus, L. turris, L. arborius, L. cubiterminalis, L. phlaskus, L. lageniformis, L. windii, L. sp.,

Distinguishing features: Medium sized (6-10 µm) Lucianorhabdus with long, tapering process


Taxonomy:

Citation: Lucianorhabdus turris Lees, 2007
Rank: Species

Farinacci & Howe catalog pages: Lucianorhabdus turris *

Distinguishing features: Medium sized (6-10 µm) Lucianorhabdus with long, tapering process


Morphology remarks: "A species of Lucianorhabdus with a relatively long, hollow spine, that tapers to a point. The spine may be straight or may lean to one side. In XPL, the medium-sized base-plate has a narrow rim and appears as a solid block in the middle when rotated, whilst at 0 ̊, there appears to be a central perforation in the plate, as it becomes optically discontinuous. Differentiation: The new species differs from other lucianorhabdids in having a pointed spine, that may or may not lean, without a terminal plug or plate. It is distinguished from Acuturris scotus by its larger size and thick, solid base-plate. " [Lees 2007]

Size: Holotype dimensions: H = 8.36μm, W = 5.72μm.

Search data:
TagsLITHS: holococcolith, elliptical, cylindrical, hollow, CA: process, R-UNITS: R-prominent, DETAILS: ca_disjunct, rim-unicyclic,
MetricsLith size: 6->10µm; Segments: 4->4;
Sources: original description +/-2 µm
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Cenomanian Stage (93.90-100.50Ma, top in Cenomanian stage). Data source: Lees 2007 (original description)
First occurrence (base): within Cenomanian Stage (93.90-100.50Ma, base in Cenomanian stage). Data source: Lees 2007 (original description)

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Lucianorhabdus

    References:

    Lees, J. A. (2007). New and rarely reported calcareous nannofossils from the Late Cretaceous of coastal Tanzania: outcrop samples and Tanzania Drilling Project Sites 5, 9 and 15. Journal of Nannoplankton Research. 29(1): 39-65. gs


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    Lucianorhabdus turris compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 6-4-2020

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10625 Go to Archive.is to create a permanent copy of this page - citation notes



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