pforams@mikrotax - Marginotruncana <title>pforams@mikrotax - Marginotruncana


Classification: pf_mesozoic -> Globotruncanidae -> Marginotruncana
Sister taxa: Abathomphalus, Contusotruncana, Dicarinella, Gansserina, Globotruncana, Globotruncanella, Globotruncanita, Loeblichella, Marginotruncana, Radotruncana
Daughter taxa (time control age-window is: 0-800Ma)
Marginotruncana angusticarenata

Marginotruncana caronae

Marginotruncana coronata

Marginotruncana desioi

Marginotruncana manaurensis

Marginotruncana marginata

Marginotruncana paraconcavata

Marginotruncana pileoliformis

Marginotruncana pseudolinneiana

Marginotruncana renzi

Marginotruncana schneegansi

Marginotruncana sigali

Marginotruncana sigmoconcavata

Marginotruncana sinuosa

Marginotruncana tarfayaensis

Marginotruncana undulata

Marginotruncana sp.
Specimens which cannot be assigned to established species


Citation: Marginotruncana Hofker, 1956
Rank: Genus
Type species: Rosalina marginata Reuss, 1846

Original description: Globotruncaninae, welche vom Anfang an das Protoforamen verloren haben oder nie ausbildeten Auch ist nicht unmoglich, dass das Protoforamen mit dem Deuteroforamen verschmolzen ist. Daher ist die ventrale Kammerwand nicht schief ausgebildet, sondern stutzt sich gegen den Nabel mitder Umbilicallipe (Tenon) ab; die Grenze des perforierten Wandteiles mit der porenlosed Lippe ist parallel zum Nabel. Die Suturen der Kammern sind radial auf der Ventralseite.Familie Marginolamelidae. Unter familie Globotruncaninae. Cenoman-Maastricht:

Entries in the Catalog of original descriptions: Marginotruncana, Sigalitruncana

Distinguishing features:
Parent taxon (Globotruncanidae): Test trochospiral, chambers angular, periphery truncate or carinate; primary aperture umbilical, covered by a spiral system of tegilla that is provided with accessory intralaminal and infralaminal apertures.
This taxon: Test trochospiral, biconvex to planoconvex, sutures sigmoidal, especially on the umbilical side, curved, elevated and may be beaded on the spiral side, imperforate carinal band between the two peripheral keels, peripheral outline entire to lobulate; wall calcareous, perforate, surface smooth to pustulose; primary aperture interiomarginal and extraumbilical-umbilical, bordered by a triangular porticus, those of successive apertures fusing and may even form true tegilla, infralaminal and occasionally intralaminal accessory apertures present.

Emended description:


Wall type:


Geological Range:
Last occurrence (top): in lower part of Campanian Stage (38% up, 79.2Ma, in Campanian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Turonian Stage (0% up, 93.9Ma, in Cenomanian stage). Data source: Total of range of species in this database

Plot of range and occurrence data:


Hofker, J. (1956a). Die Globotruncanen von Nordwest-Deutshland und Holland. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 103: 312-340. gs

Korchagin, V. I. (1982). Систематика глоботрунканин - Systematics of the Globotruncanids. Byulleten Moskovskogo Obshchestva Ispytateley Prirody Otdel Geologicheskiy. 57(5): 114-121. gs

Loeblich, A. R. & Tappan, H. (1988). Foraminiferal Genera and Their Classification (Volume I-II). Van Nostrand Reinhold Co., New York. 1-1059. gs


Marginotruncana compiled by the pforams@mikrotax project team viewed: 8-2-2023

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AphiaID: 722176 Nomenclatural data on WoRMS
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