Nannotax3 - ntax_mesozoic - Zeugrhabdotus fissus

Zeugrhabdotus fissus

Classification: ntax_mesozoic -> Eiffellithales -> Chiastozygaceae -> Zeugrhabdotus -> Zeugrhabdotus fissus
Sister taxa: Z. blowii, Z. burolletii, Z. burwellensis, 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. kerguelenensis, Z. large spine, Z. clubhousensis ⟩⟨ 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°

GrunZweili80-pl15-09.JPG
GrunZweili80-pl15-12.JPG
Bown2005-ODP198 Pl02-23.jpg
BownCooper1998 4-10-12.jpg
Bown2005-ODP198 Pl02-22.jpg
Bown2005-ODP198 Pl02-24.jpg
BownCooper1998 4-10-11.jpg
GrunZweili80-pl15-10.JPG
GrunZweili80-pl15-11.JPG
Kristan-Tollmann 1988 pl1 f2.JPG

Taxonomy:

Citation: Zeugrhabdotus fissus Grün & Zweili, 1980

Rank: Species

Taxonomic discussion: Morphology similar to Z. blowii but the reported ranges are very different (Oxfordian-Valangian vs Turonian-Campanian)

Farinacci & Howe catalog pages: Z. fissus *

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

Search data:

Tags	LITHS: murolith, ca_disjunct, process, bar, CROSS-POLARS: rim-unicyclic, V-prominent,
Metrics	Lith size: 3->6µm; Data source notes: 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:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
Taxon plotted: Zeugrhabdotus fissus, synonyms included - Zeugrhabdotus fissus; Zygodiscus fissus;
See also 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 V O

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 V O

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

Zeugrhabdotus fissus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 19-1-2021

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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