Original description: Test of medium size, biconvex, with umbilical side more convex than spiral one. The periphery with two quite closely spaced keels. The chambers of both sides slightly inflated. The last chamber more inflated than the others. In the last whorl 6-8 chambers. Chambers of the umbilical side covered by tubercles, the spiral side smooth. Umbilicus deep, narrow. The aperture interiomarginal; the accessory apertures not observed. Sutures radial, depressed.
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 H. helvetica zone (92.56-93.52Ma, base in Turonian stage). Data source: [copied from Chronos database]
Plot of range and 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
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
Huber, B. T., Petrizzo, M. R., Watkins, D. K., Haynes, S. J. & MacLeod, K. G. (2017a). Correlation of Turonian continental margin and deep-sea sequences in the subtropical Indian Ocean sediments by integrated planktonic foraminiferal and calcareous nannofossil biostratigraphy. Newsletters on Stratigraphy. 50: 141-185. gs
Leckie, M. (1985). Foraminifera of the Cenomanian-Turonian boundary interval, Greenhorn Formation, Rock Canyon Antoicline, Pueblo, Colorado. In, Pratt, L. M., Kauffman, E. G. & Zelt, F. B. (eds) Fine-grained deposits and biofacies of the Cretaeous Wesern Interior Seaway: Evidence of cyclic sedimentary processes. SEPM Field Trip Guidebook. 4: 139-149. 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
Scheibnerová, V. (1962). Stratigrafia strednej a vrchnej kriedy tetydní oblasti na zaklade globotruncanid - Stratigraphy of the Middle and Upper Cretaceous of the Tethyan region on the basis of the Globotruncanids. Geologiscky Zbornik -Geologica Carpathica. 13(2): 219-226. gs
Dicarinella hagni compiled by the pforams@mikrotax project teamviewed: 7-7-2022
Huber et al 2017 pl3-01.JPG
Falzoni et al 2016 f04-09.JPG
Huber et al 2017 pl3-02.JPG
Huber et al 2017 pl3-03.JPG
Huber et al 2017 pl3-04.JPG
Huber et al 2017 pl3-05.JPG
Huber et al 2017 pl3-06.JPG
Huber et al 2017 pl3-07.JPG
Huber et al 2017 pl3-08.JPG
ODP Site 1050-32~c.JPG
Robaszynski et al 1979_f56f1-32.JPG
Robaszynski et al 1979_f56f2-32.JPG
Robaszynski et al 1979_f57f1-32.JPG
ODP Site 1050-32~b.JPG
Leckie 1985_3f1-2-32.JPG
Robaszynski et al 1979_f57f2-32.JPG
Leckie 1985_3f6-32.JPG
TDP-33.JPG
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