Ahmuellerella regularis


Classification: Mesozoic -> Eiffellithales -> Chiastozygaceae -> Ahmuellerella -> Ahmuellerella regularis
Sister taxa: A. alboradiata, A. octoradiata, A. regularis, A. sp.,

Distinguishing features: Muroliths with narrow rim and central area plate-like structure divided into 8 near-radial sectors each with a medial dark suture in LM.


Taxonomy:

Citation: Ahmuellerella regularis (Górka, 1957) Reinhardt & Górka, 1967
Rank: Species
Basionym: Tremalithus regularis Górka, 1957
Synonyms:

Farinacci & Howe catalog pages: Tremalithus regularis * , Reinhardtites mirabilis * , Cretarhabdus imbricis * , Rhagodiscus hemmoorensis *

Distinguishing features: Muroliths with narrow rim and central area plate-like structure divided into 8 near-radial sectors each with a medial dark suture in LM.

Geological Range:
Last occurrence (top): at top of Maastrichtian Stage (100% up, 66Ma, in Maastrichtian stage). Data source: Lees & Bown 2005 - consistently present to end Cret
First occurrence (base): in upper part of UC8a subzone (80% up, 92.4Ma, in Turonian stage). Data source: Burnett 1998, fig.6.3

Plot of occurrence data:

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Note to users in China - the diagram may not plot unless you use a VPN since I use google services on the website. If this is a problem please contact me 谢谢.
  • Taxon plotted: Ahmuellerella regularis, synonyms included - Actinozygus regularis; Ahmuellerella regularis; Parhabdolithus regularis; Rhabdolithina regularis;
  • space-time plot :: Samples map :: Parent: Ahmuellerella

    References:

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

    Górka, H. (1957). Les Coccolithophoridés du Maestrichtien supérieur de Pologne. Acta Palaeontologica Polonica. 2: 239-284. 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

    Perch-Nielsen, K. (1968c). Der Feinbau und die Klassifikation der Coccolithen aus dem Maastrichtien von Danemark. Biologiske Skrifter. Kongelige Danske Videnskabernes Selskab. 16: 1-96. gs

    Reinhardt, P. & Górka, H. (1967). Revision of some Upper Cretaceous Coccoliths from Poland and Germany. Neues Jahrbuch für Geologie und Paläontologie Abhandlungen. 129: 240-256. gs

    Shumenko, S. I. (1970). An electron microscopic study of Microrhabdulids and their taxonomic position. Paleontological Journal. 4(2): 18-23. gs

    Thibault, N. (2010). Calcareous nannofossils from the boreal Upper Campanian- Maastrichtian chalk of Denmark. Journal of Nannoplankton Research. 30(1): 39-56. gs

    Verbeek, J. W. (1977). Calcareous nannoplankton biostratigraphy of Middle and Upper Cretaceous deposits in Tunisia, southern Spain and France. Utrecht Micropaleontological Bulletin. 16: 1-157. gs


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    Ahmuellerella regularis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 14-11-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10011 Go to Archive.is to create a permanent copy of this page - citation notes



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