nmn

Dicarinella imbricata


Classification: pf_mesozoic -> Globotruncanidae -> Dicarinella -> Dicarinella imbricata
Sister taxa: D. asymetrica, D. bouldinensis, D. canaliculata, D. concavata, D. hagni, D. imbricata, D. longoriai, D. marianosi, D. primitiva, D. roddai, D. takayanagii, D. sp.,

Taxonomy

Citation: Dicarinella imbricata (Mornod, 1950)
Rank: Species
Basionym: Globotruncana imbricata

Type images:

Original description: French translation: Small shell with a trochospiral, dextral coiling, convex spiral side, concave umbilical side, equatorial periphery slightly lobulate, except for the two last chambers (the last chamber in the paratype) which are large, globular and devoid of the two carinal ridges that ornament the preceding chambers.

Entries in the Catalog of original descriptions: Globotruncana imbricata

Geological Range:
Last occurrence (top): within D. concavata zone (86.71-89.91Ma, top in Coniacian stage). Data source: [copied from Chronos database]
First occurrence (base): within R. cushmani zone (94.03-95.94Ma, base in Cenomanian stage). Data source: [copied from Chronos database]

Plot of occurrence data:

Dec 2017 - Plotting of Neptune data has been re-enabled on the Mesozoic pages following revision of the age-models in Neptune. The data is, however, still very sparse for the Early Cretaceous

  • 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: Dicarinella imbricata, synonyms included - Concavatotruncana imbricata; Dicarinella imbricata; Globotruncana imbricata; Marginotruncana imbricata; Praeglobotruncana imbricata;
  • space-time plot :: Samples map :: Parent: Dicarinella

    Character matrix

    test outline:Lobatechamber arrangement:Trochospiraledge view:Equally biconvexaperture:Umbilical
    sp chamber shape:Petaloidcoiling axis:Moderate-highperiphery:Imperforate bandaperture border:Thin porticus
    umb chbr shape:Subtriangularumbilicus:Narrowperiph margin shape:Subangularaccessory apertures:None
    spiral sutures:Raised beadedumb depth:Deepwall texture:Finely pustuloseshell porosity:Microperforate: <1µm
    umbilical or test sutures:Moderately depressedfinal-whorl chambers:5.0-6.0 N.B. These characters are used for advanced search. N/A - not applicable

    References:

    Falzoni, F., Petrizzo, M. R., Jenkyns, H. C., Gale, A. S. & Tsikos, H. (2016). Planktonic foraminiferal biostratigraphy and assemblage composition across the Cenomanian–Turonian boundary interval at Clot Chevalier (Vocontian Basin, SE France). Cretaceous Research. 59: 69-97. gs

    Mornod, L. (1950). Les Globorotalides du Cretace superieur du Montsalvens (Prealpes fribourgeoises). Eclogae Geologicae Helvetiae. 42(2): 573-595. gs

    Peryt, D. (1980). Planktic foraminifera zonation of the Upper Cretaceous in the middle Vistula River valley, Poland. Palaeontologia Polonica. 41: 1-123. gs

    Postuma, J. A. (1971). Manual of planktonic foraminifera. Elsevier for Shell Group, The Hague. 1-406. gs

    Robaszynski, F., Caron, M. & le Groupe de Travail Européen des Foraminifères Planctoniques (1979). Atlas des Foraminiféres Planctoniques du Crétace Moyen (Mer Boréale et Téthys). Cahiers de Micropaléontologie,. 1 & 2: 1-185. gs


    logo

    Dicarinella imbricata compiled by the pforams@mikrotax project team viewed: 23-11-2019

    Taxon Search:
    Advanced Search

    Short stable page link: http://mikrotax.org/pforams/index.php?id=110091 Go to Archive.is to create a permanent copy of this page - citation notes



    Comments (0)

    No comments yet. Be the first!

    Add Comment

    * Required information
    1000
    Captcha Image
    Powered by Commentics