Zeugrhabdotus fissus


Classification: Mesozoic -> Eiffellithales -> Chiastozygaceae -> Zeugrhabdotus -> Zeugrhabdotus fissus
Sister taxa: Z. blowii, Z. burolletii, Z. erectus, Z. fissus, Z. moulladei, Z. noeliae, Z. bicrescenticus, Z. diplogrammus, Z. fluxus, Z. howei, Z. petrizzoae, Z. reticulatus, Z. scutula, Z. biperforatus, Z. burwellensis, Z. kerguelenensis, Z. clarus, Z. acanthus, Z. trivectis, Z. xenotus, Z. angelozziae, Z. cooperi, Z. embergeri, Z. praesigmoides, Z. sigmoides, Z. simplex, Z. streetiae, Z. sp.,

Distinguishing features: Unicyclic, small; bar divided longitudinally, darkest at 0°


Taxonomy:

Citation: Zeugrhabdotus fissus Grün & Zweili, 1980
Rank: Species
Notes & discussion: Morphology similar to Z. blowii but the reported ranges are very different  (Oxfordian-Valangian vs Turonian-Campanian)

Farinacci & Howe catalog pages: Zeugrhabdotus fissus *

Distinguishing features: Unicyclic, small; bar divided longitudinally, darkest at 0°

Search data:
TagsLITHS: murolith, CA: process, bar, V-UNITS: V-prominent, DETAILS: ca_disjunct, rim-unicyclic,
MetricsLith size: 3->6µm;
Sources: original description & 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 Late Valanginian Substage (133.88-136.41Ma, top in Valanginian stage). Data source: Bown & Cooper 1998
First occurrence (base): within Oxfordian Stage (157.25-163.47Ma, base in Oxfordian stage). Data source: Bown & Cooper 1998

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: Zeugrhabdotus fissus, synonyms included - Zeugrhabdotus fissus; Zygodiscus fissus;
  • space-time plot :: Samples map :: Parent: Zeugrhabdotus

    References:

    Bown, P. R. & Cooper, M. K. E. (1998). Jurassic. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 34-85. gs :: ::

    Bown, P. R. (2005c). Early to Mid-Cretaceous Calcareous Nannoplankton from the Northwest Pacific Ocean, Leg 198, Shatsky Rise. Proceedings of the Ocean Drilling Program, Scientific Results. 198: 1-82. gs :: view :: open

    Grün, W. & Zweili, F. (1980). Das kalkige Nannoplankton der Dogger-Malm-Grenze im Berner Jura bei Liesberg (Schweiz). Jahrbuch der Geologischen Bundesanstalt. 123: 231-341. gs :: ::

    Kristan-Tollmann, E. (1988b). Coccolithen aus den Älteren Allgäuschichten (Alpiner Lias, Sinemur) von Timor, Indonesien. Geologische und Paläontogische Mitteilungen Innsbruck. 15: 71-83. gs :: ::

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    Zeugrhabdotus fissus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 3-6-2020

    Taxon Search:
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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11333 Go to Archive.is to create a permanent copy of this page - citation notes
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