Nannotax3 - ntax_mesozoic - Broinsonia parca subsp. expansa

Broinsonia parca subsp. expansa


Classification: ntax_mesozoic -> Arkhangelskiales -> Arkhangelskiellaceae -> Broinsonia -> Broinsonia parca -> Broinsonia parca subsp. expansa
Sister taxa: B. parca subsp. expansa, B. parca subsp. parca, B. parca subsp. constricta

Distinguishing features:
Parent taxon (Broinsonia parca): Large (>9 µm) central structure perforate plate; rim broad.
This taxon: Broad central plate; plate width >2 x margin width


Taxonomy:

Citation: Broinsonia parca subsp. expansa Wise & Watkins in Wise, 1983
Rank: Sub-species
Synonyms: Aspidolithus parcus expansus (Wise & Watkins in Wise 1983) Perch-Nielsen 1984
Taxonomic discussion: This taxon is rarely reported, so in practice the parca expansa form is probably normally included in parca parca

Farinacci & Howe catalog pages: B. parca expansa *

Distinguishing features:
Parent taxon (Broinsonia parca): Large (>9 µm) central structure perforate plate; rim broad.
This taxon: Broad central plate; plate width >2 x margin width


Morphology:


Size:

Search data:
LITHS: placolith, elliptical, CA: plate, pores, closed, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
Lith size: 7->15µm;
Data source notes: illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Campanian Stage (72.05-83.64Ma, top in Campanian stage). Data source: Burnett 1998
First occurrence (base): at base of UC9c subzone (0% up, 90Ma, in Turonian stage). Data source: Burnett 1998 (subzonal marker)

Plot of occurrence data:

References:

Bukry, D. (1969). Upper Cretaceous coccoliths from Texas and Europe. University of Kansas Paleontological Contributions, Articles. 51 (Protista 2): 1-79. gs O

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

Mai, H. (2001). New coccolithophorid taxa fom the Guelhemmerberg airshaft. Lower Paleocene, The Netherlands. Micropaleontology. 47: 144-154. gs

Perch-Nielsen, K. (1984b). Validation of new combinations. INA Newsletter. 6(1): 42-46. gs V O

Püttmann, T. & Mutterlose, J. (2019). Calcareous nannofossils from a Late Cretaceous nearshore setting. Journal of Nannoplankton Research. S4: 81-88. gs V O

Püttmann, T., Linnert, C., Dölling, B. & Mutterlose, J. (2018). Deciphering Late Cretaceous (Cenomanian to Campanian) coastline dynamics in the southwestern Münsterland (northwest Germany) by using calcareous nannofossils: Eustasy vs local tectonics,. Cretaceous Research. 87: 174-184. gs

Stradner, H. (1963). New contributions to Mesozoic stratigraphy by means of nannofossils. Proceedings of the Sixth World Petroleum Congress. Section 1 Paper 4: 167-183. gs

Wise, S. W. & Wind, F. H. (1977). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 36 drilling on the Falkland Plateau, south-west Atlantic sector of the Southern Ocean. Initial Reports of the Deep Sea Drilling Project. 36(269-491): -. gs O

Wise, S. W. (1983). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 71 in the Falkland Plateau region, Southwest Atlantic Ocean. Initial Reports of the Deep Sea Drilling Project. 71: 481-550. gs O


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Broinsonia parca subsp. expansa compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 25-9-2022

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10129 Go to Archive.is to create a permanent copy of this page - citation notes



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