Gartnerago obliquum


Classification: Mesozoic -> Arkhangelskiales -> Kamptneriaceae -> Gartnerago -> Gartnerago obliquum
Sister taxa: G. obliquum, G. segmentatum, G. costatum, G. diversum, G. stenostaurion, G. clarusora, G. chiasta, G. margaritatus, G. praeobliquum, G. coxalliae, G. nanum, G. ponticula, G. theta, G. sp.,

Distinguishing features: Gartnerago with a narrow rim and a broad central area, filled with a plate pierced by numerous pores (~>10 in each quadrant); the plate is crossed by sutures, the transverse of which is slightly oblique.


Taxonomy:

Citation: Gartnerago obliquum (Stradner, 1963) Noël, 1970
Rank: Species
Basionym: Arkhangelskiella obliqua Stradner, 1963
Synonyms:

Farinacci & Howe catalog pages: Arkhangelskiella obliqua * , Ahmuellerella oblata * , Arkhangelskiella inclinata * , Arkhangelskiella concava * , Arkhangelskiella magnacava * , Arkhangelskiella scapha *

Distinguishing features: Gartnerago with a narrow rim and a broad central area, filled with a plate pierced by numerous pores (~>10 in each quadrant); the plate is crossed by sutures, the transverse of which is slightly oblique.

Geological Range:
Last occurrence (top): within Coniacian Stage (86.26-89.77Ma, top in Coniacian stage). Data source: Burnett 1998
First occurrence (base): in mid part of UC2c subzone (50% up, 96.7Ma, in Cenomanian stage). Data source: Burnett 1998, fig.6.2

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: Gartnerago obliquum, synonyms included - Ahmuellerella oblata; Arkhangelskiella obliqua; Discolithus decoratus; Gartnerago obliquum; Gartnerago obliquum (small); Laffittius obliquus;
  • space-time plot :: Samples map :: Parent: Gartnerago

    References:

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

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

    Noël, D. (1970). Coccolithes Crétacés: La Craie Campanienne du Bassin de Paris. Éditions du Centre National de la Recherche Scientifique, Paris. -. gs

    Reinhardt, P. (1967). Fossile Coccolithen mit rhagoidem Zentralfeld (Fam. Ahmuellerellaceae, Subord. Coccolithineae). Neues Jahrbuch für Geologie und Paläontologie Monatshefte. 1967: 163-178. gs

    Self-Trail, J. (1999). Some new and rarely documented Late Cretaceous calcareous nannofossils from subsurface sediments in South Carolina. Journal of Paleontology. 73(5): 952-963. 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

    Stradner, H., Aubry, M. -P. & Bonnemaison, M. (2010). Calcareous nannofossil type specimens in the collection of the Geological Survey of Austria: A taxonomic and stratigraphic update. Jahrbuch der Geologischen Bundesanstalt. 150(1-2): 9-84. gs

    Thierstein, H. R. (1974). Calcareous nannoplankton - Leg 26, Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project. 26: 619-667. 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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    Gartnerago obliquum compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 15-12-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10465 Go to Archive.is to create a permanent copy of this page - citation notes



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