pforams@mikrotax - Dicarinella hagni

Dicarinella hagni


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

Taxonomy

Citation: Dicarinella hagni (Scheibnerova, 1962)
Rank: Species
Basionym: Praeglobotruncana hagni

Type images:

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.

Entries in the Catalog of original descriptions: Praeglobotruncana hagni


Emended description:


Morphology:

Wall type:

Size:

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:

Character matrix
test outline:Subcircularchamber arrangement:Trochospiraledge view:Equally biconvexaperture:Umbilical-extraumbilical
sp chamber shape:Petaloidcoiling axis:Moderate-highperiphery:Double keelaperture border:Thin porticus
umb chbr shape:Trapezoidalumbilicus: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:6.0-8.0 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

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


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Dicarinella hagni compiled by the pforams@mikrotax project team viewed: 7-7-2022

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Short stable page link: https://mikrotax.org/pforams/index.php?id=110090 Go to Archive.is to create a permanent copy of this page - citation notes



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