Retecapsa escaigii


Classification: Mesozoic -> Podorhabdales -> Cretarhabdaceae -> Retecapsa -> Retecapsa escaigii
Sister taxa: R. incompta, R. angustiforata, R. beckii, R. octofenestrata, R. schizobrachiata, R. crenulata, R. surirella, R. escaigii, R. ficula, R. sp.,

Distinguishing features: Cretarhabdids with axial cross & numerous narrow lateral bars per quadrant. Distal shield flat or sloping into central area. 


Taxonomy:

Citation: Retecapsa escaigii (Noël, 1965) Young & Bown 2014
Rank: Species
Basionym: Polypodorhabdus escaigii Noël, 1965

Farinacci & Howe catalog pages: Polypodorhabdus escaigi *

Distinguishing features: Cretarhabdids with axial cross & numerous narrow lateral bars per quadrant. Distal shield flat or sloping into central area. 


Morphology remarks: Cretarhabdids with distal shields that slope in to the central-area, which is spanned by an axial cross with numerous lateral bars (7-8 in each quadrant). The reverse slope of the distal shield is very distinctive in SEM. 

Search data:
TagsLITHS: placolith, elliptical, CA: cross-axial, grill, process, R-UNITS: R-prominent, DETAILS: ca_disjunct, rim-unicyclic,
MetricsLith size: 5->7µm;
Sources: 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 Jurassic Epoch (145.01-163.47Ma, top in Tithonian stage). Data source: [PRB estimate]
First occurrence (base): within Aalenian Stage (170.30-174.15Ma, base in Aalenian 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: Retecapsa escaigii, synonyms included - Polypodorhabdus escaigii; Retecapsa escaigii;
  • space-time plot :: Samples map :: Parent: Retecapsa

    References:

    Barnard, T. & Hay, W. W. (1974). On Jurassic coccoliths: A tentative zonation of the Jurassic of Southern England and North France. Eclogae Geologicae Helvetiae. 67(3): 563-585. gs :: view :: open

    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 :: ::

    de Kaenel, E. & Bergen, J. A. (1996). Mesozoic calcareous nannofossil biostratigraphy from sites 897, 899, and 901, Iberia Abyssal Plain: New biostratigraphic evidence. Proceedings of the Ocean Drilling Program, Scientific Results. 149: 27-59. 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 :: ::

    Medd, A. W. (1979). The Upper Jurassic coccoliths from the Haddenham and Gamlingay boreholes (Cambridgeshire, England). Eclogae Geologicae Helvetiae. 72: 19-109. gs :: view :: open

    Noël, D. (1965). Sur les Coccolithes du Jurassique Européen et d'Afrique du Nord. Éditions du Centre National de la Recherche Scientifique, Paris. 1-209. gs :: ::

    Noël, D. (1973). Nannofossiles calcaires de sédiments jurassiques finement laminés. Bulletin du Muséum National d'Histoire Naturelle. 3e serie, 75: 95-156. gs :: ::

    Rood, A. P., Hay, W. W. & Barnard, T. (1971). Electron Microscope Studies of Oxford Clay Coccoliths. Eclogae Geologicae Helvetiae. 64: 245-272. gs :: view :: open

    Wind, F. H. & Cepek, P. (1979). Lower Cretaceous calcareous nannoplankton from DSDP Hole 397A (northwest African Margin). Initial Reports of the Deep Sea Drilling Project. 47A: 221-235. gs :: view :: open

    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 :: view :: open

    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 :: view :: open

    Young, J. R. & Bown, P. R. (2014). Some emendments to calcareous nannoplankton taxonomy. Journal of Nannoplankton Research. 33(1): 39-46. gs :: view :: open


    nannotaxlogo400px

    Retecapsa escaigii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 5-7-2020

    Taxon Search:
    Advanced Search

    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11000 Go to Archive.is to create a permanent copy of this page - citation notes



    Comments (0)

    No comments yet on this page. Please do add comments if you spot any problems, or have information to share

    Add Comment

    * Required information
    1000
    Captcha Image
    Powered by Commentics