Classification: pf_cenozoic -> Globigerinidae -> Guembelitrioides
Sister taxa: Beella, Globigerina, Globigerinella, Protentella, Quiltyella ⟩⟨ Ciperoella, Globigerinoides, Globigerinoidesella, Globoturborotalita, Orbulina, Praeorbulina, Sphaeroidinella, Sphaeroidinellopsis, Trilobatus, Turborotalita ⟩⟨ Dentoglobigerina, Globoquadrina ⟩⟨ Catapsydrax, Clavatorella, Paragloborotalia, Protentelloides ⟩⟨ Eoglobigerina, Globigerinatheka, Globorotaloides, Guembelitrioides, Orbulinoides, Parasubbotina, Pseudoglobigerinella, Subbotina
Daughter taxa: (blue => in age window 0-800Ma)
Guembelitrioides nuttalli
The very high spire, lobate periphery, globular chambers and supplementary apertures typically characterize this species.
Guembelitrioides sp.
Specimens which cannot be assigned to established species


Citation: Guembelitrioides El Naggar, 1971
Rank: Genus
Type species: Globigerinoideshigginsi Bolli, 1957; junior synonym of “Globigerinoidesnuttalli Hamilton, 1953
Taxonomic discussion: El-Naggar (1971, p. 450) in his classification of Globigerinacea stated that, in his view, “highly turreted Globigerinoides species, such as Globigerinoides higginsi Bolli, 1957, are in fact Guembelitrias with developed supplementary apertures. They are related to Guembelitria in the same way as Globigerinoides is related to Globigerina”. However, Guembelitrioides bears no relation to Guembelitria, which is a microperforate nonspinose genus. On the other hand, Bolli (1957b) in describing his species clearly stated that his Globigerinoides higginsi (= nuttalli) had no relationship with Neogene Globigerinoides even though they both shared supplementary apertures. Nevertheless it is useful to recognize the nuttalli (= higginsi) morphology as distinct at the generic level, so El Naggar’s name stands. The genus is monospecific. [Olsson et al. 2006]

Loeblich and Tappan (1961, 1988) included the genus Guembelitriodes in the Family Catapsydracidae. Here we include it in the Family Globigerinidae. [Olsson et al. 2006]

Catalog entries: Guembelitrioides

Distinguishing features: Like Subbotina gortanii group but with supplementary sutural apertures.

NB These concise distinguishing features statements are used in the tables of daughter-taxa to act as quick summaries of the differences between e.g. species of one genus.
They are being edited as the site is developed and comments on them are especially welcome.


Wall type: Spinose, high porosity cancellate sacculifer type wall texture, pore diameter 5 µm. [Olsson et al. 2006]

Biogeography and Palaeobiology

Most likely ancestor: Parasubbotina - at confidence level 0 (out of 5). Data source: .
Likely descendants: Globigerinatheka;

Biostratigraphic distribution

Geological Range:
Last occurrence (top): near top of Lutetian Stage (89% up, 41.9Ma, in Lutetian stage). Data source: Total of range of species in this database
First occurrence (base): in lower part of Lutetian Stage (32% up, 45.7Ma, in Lutetian stage). Data source: Total of range of species in this database

Plot of occurrence data:

Primary source for this page: Olsson et al. 2006 - Eocene Atlas, chap. 5, p. 84


Blow, W. H. (1979). The Cainozoic Globigerinida: A study of the morphology, taxonomy, evolutionary relationships and stratigraphical distribution of some Globigerinida (mainly Globigerinacea). E. J. Brill, Leiden. 2: 1-1413. gs

Bolli, H. M. (1957a). Planktonic foraminifera from the Eocene Navet and San Fernando formations of Trinidad. In, Loeblich, A. R. , Jr. , Tappan, H. , Beckmann, J. P. , Bolli, H. M. , Montanaro Gallitelli, E. & Troelsen, J. C. (eds) Studies in Foraminifera. U.S. National Museum Bulletin. 215: 155-172. gs V O

El-Naggar, Z. R. (1971a). On the classification, evolution and stratigraphical distribution of the Globigerinacea. In, Farinacci, A. (ed.) Proceedings of the Second Planktonic Conference, Roma 1970. Edizioni Tecnoscienza, Rome 421-476. gs

Hamilton, E. L. (1953). Upper Cretaceous, Tertiary, and Recent planktonic foraminifera from mid-Pacific flat-topped seamounts. Journal of Paleontology. 27(2): 204-237. gs

Loeblich, A. R. & Tappan, H. (1961). Cretaceous planktonic foraminifera: Part I-Cenomanian. Micropaleontology. 7: 257-304. gs

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

Olsson, R. K., Pearson, P. N. & Huber, B. T. (2006c). Taxonomy, biostratigraphy, and phylogeny of Eocene Catapsydrax, Globorotaloides, Guembelitrioides, Paragloborotalia, Parasubbotina, and Pseudoglobigerinella n. gen. In, Pearson, P. N. , Olsson, R. K. , Hemleben, C. , Huber, B. T. & Berggren, W. A. (eds) Atlas of Eocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication. 41(Chap 5): 67-110. gs V O


Guembelitrioides compiled by the pforams@mikrotax project team viewed: 30-10-2020

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