Nannotax3 - ntax_mesozoic - Uniplanarius gothicus

Uniplanarius gothicus


Classification: ntax_mesozoic -> Braarudosphaerales -> Polycyclolithaceae -> Uniplanarius -> Uniplanarius gothicus
Sister taxa: U. clarkei, U. gothicus, U. sissinghii, U. trifidus, U. sp.

Distinguishing features:
Parent taxon (Uniplanarius): Stellate (triradiate or tetraradiate) nannoliths with three or four ray-like elements; there may be a small central diaphragm.
This taxon: Uniplanarius with four rays with relatively short free length.


Taxonomy:

Citation: Uniplanarius gothicus (Deflandre, 1959) Hattner & Wise, in Wind & Wise 1983
Rank: Species
Basionym: Tetralithus gothicus Deflandre, 1959
Synonyms:
Taxonomic discussion: The combination was initially proposed in Hattner & Wise 1980 but the original publication was not cited directly hence the proposal was technically invalid and so was proposed again, validly, in  Wind & Wise 1983

Farinacci & Howe catalog pages: T. gothicus *

Distinguishing features:
Parent taxon (Uniplanarius): Stellate (triradiate or tetraradiate) nannoliths with three or four ray-like elements; there may be a small central diaphragm.
This taxon: Uniplanarius with four rays with relatively short free length.


Morphology:


Size:

Search data:
LITHS: nannolith-radiate, quadrate, star-shaped, CA: closed, CROSS-POLARS: T-prominent,
Lith size: 5->10µm; Segments: 4->4;
Data source notes: illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

See also: Quadrum gartneri - very similar, possibly a synonym;

Geological Range:
Notes: LAD earlier in N Europe, UC16 (Burnett 1998)
Last occurrence (top): in upper part of UC17 zone (80% up, 71.2Ma, in Maastrichtian stage). Data source: Burnett 1998, fig 6.6
First occurrence (base): in mid part of UC12 zone (45% up, 84.5Ma, in Santonian stage). Data source: Burnett 1998, fig 6.4

Plot of occurrence data:

References:

Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 132-199. gs O

Deflandre, G. (1959). Sur les nannofossiles calcaires et leur systématique. Revue de Micropaléontologie. 2: 127-152. gs

Hattner, J. G. & Wise, S. W. (1980). Upper Cretaceous calcareous nannofossil biostratigraphy of South Carolina. South Carolina Geology. 24: 41-117. gs

Lees, J. A. & Bown, P. R. (2005). Upper Cretaceous calcareous nannofossil biostratigraphy, ODP Leg 198 (Shatsky Rise, Northwest Pacific Ocean). Proceedings of the Ocean Drilling Program, Scientific Results. 198: 1-60. gs V O

Manivit, H. (1989). Calcareous nannofossil biostratigraphy of Leg 108 sediments. Proceedings of the Ocean Drilling Program, Scientific Results. 108: 35-69. gs V O

Perch-Nielsen, K. (1977a). Albian to Pleistocene calcareous nannofossils from the Western South Atlantic, DSDP Leg 39. Initial Reports of the Deep Sea Drilling Project. 39: 699-823. gs O

Thibault, N. (2010). Calcareous nannofossils from the boreal Upper Campanian- Maastrichtian chalk of Denmark. Journal of Nannoplankton Research. 31(1): 39-56. gs V O

Varol, O. (1992b). Taxonomic revision of the Polycyclolithaceae and its contribution to Cretaceous biostratigraphy. Newsletters on Stratigraphy. 27(93-127): -. gs

Wind, F. H. & Wise, S. W. (1983). Correlation of upper Campanian-lower Maestrichtian calcareous nannofossil assemblages in drill and piston cores from the Falkland Plateau, southwest Atlantic Ocean. Initial Reports of the Deep Sea Drilling Project. 71: 551-563. gs V O


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Uniplanarius gothicus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 30-9-2022

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