Evolution and Geological Significance of Larger Benthic Foraminifera

doi:10.14324/111.9781911576938

Cited by 12 publications

(16 citation statements)

References 215 publications

(370 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All forms in the subprovince that is today South East Asia (on the margins and to the west of the Wallace Line) went extinct at the end of the Albian (top of PZ Albian 4). The 'hotspot' for orbitolinid evolution, however, remained in Tethys, where environmental conditions continued to contribute to their success until the end of the Cenomanian, when virtually all symbiotic, morphologically complex orbitolinids became extinct, as indeed did many of the other agglutinated LBFs that dated from the Early Cretaceous and Jurassic (see [1]). These extinctions coincided with an anoxic oceanic event UCL OPEN ENVIRONMENT https://dx.doi.org/10.14324/111.444/ucloe.000001…”

Section: Figurementioning

confidence: 99%

“…The Cretaceous morphologically complex orbitolinids are divided into the dictyoconines and orbitolinines, and range from the Valanginian to the Cenomanian. They are divided into the following five morphological groups (see [1]): Global evolution and paleogeographic distribution of mid-Cretaceous orbitolinids (iii) Orbitolinids with radial partitions thickening away from the periphery to anastomose centrally around the aperture and form a reticulate zone in the transverse section, also first appeared in the late Valanginian (e.g. Valdanchella, PZ Valanginian 2).…”

Section: Figurementioning

confidence: 99%

“…9e) [28]. In the radial zone of Orbitolina, the stolons are arranged in radial rows alternating from one chamber to the next one (see [1]). Their alternating position would have obliged the protoplasm to flow in an oblique direction [66].…”

Section: Figurementioning

confidence: 99%

“…Orbitolinidae were present in the warm, shallow marine waters of the Early Cretaceous to the early Oligocene, however, they were most diverse during the mid-Cretaceous. During the Early to mid-Cretaceous (Valanginian to early Cenomanian), there was an identifiable increase in the complexity of their morphological structure, which enabled them to house within their tests symbiotic algae [1], and it is these forms which are the subject of this paper. Traditionally, orbitolinids are considered to define two major, distinct paleogeographic realms, namely those of the Americas and the Tethys (see BouDagher-Fadel [1]), but in this study we document forms from the Western Pacific that are distinct from their Tethyan forebears, and so define a third orbitolinid province.…”

Section: Introductionmentioning

confidence: 99%

“…During their existence, the structurally complex orbitolinids showed relatively rapid phylogenetic evolution, developing many stratigraphically short-ranged species, which when combined with the PZ scheme (see Fig. 1) act as a very important and precise index fossil group for the shallowmarine environments of the mid-Cretaceous Tethys [1,6,31,57]. As a result, they have been widely adopted as a biostratigraphic tool by industry in the exploration of Middle Eastern and other oil and gas fields.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Global evolution and paleogeographic distribution of mid-Cretaceous orbitolinids

BouDagher‐Fadel

Price

2019

UCL Open Environ

View full text Add to dashboard Cite

Members of the Larger Benthic Foraminiferal (LBF) family Orbitolinidae occurred from the Cretaceous to the Paleogene, however, they were most diverse during the mid-Cretaceous, and dominated the agglutinated LBF assemblages described from limestones of that period. Various orbitolinid species have been used to zone and date lithologies formed in the shallow, warm waters of the Aptian to the early Cenomanian, and many, sometimes inaccurate, generic and sub-generic nomenclatures have been proposed to differentiate the often-subtle morphological changes that orbitolinids exhibit over time. Also, until now, it has not been possible to develop an effective global overview of their evolution and environmental development because descriptions of specimens from Asia have been relatively rare. Following our recent study of over 1800 orbitolinid-rich thin sections of material from 13 outcrops of Langshan limestone, from the Southern Tibetan Plateau, and from the Barito Basin, South Kalimantan, Indonesia, it has been possible to compare the stratigraphic ranges of these orbitolinids with previously described Tethyan and American forms, based on the use of a planktonic zonal (PZ) scheme, itself tied to the most recent chronostratigraphic scale. This has allowed the reconstruction of the phylogenetic and paleogeographic evolution of the orbitolinids from their Valanginian origin in the Tethys. Although the Tethys remained the paleogeographic centre for the orbitolinids, it is inferred here for the first time that a bi-directional paleogeographic migration of some orbitolinid genera occurred from the Tethys to the Americas and also to the Western Pacific region. Our observations and dating suggest that global marine regressions in the Aptian were coincident with, and may well have facilitated, these orbitolinid transoceanic migrations. Migration stopped however after rising sea level in the early Albian appears to have again isolated these provinces from each other. Tectonic forces associated with the subduction of the Farallon Plate and further sea level raises led to the opening of the Western Interior Seaway in North America, which correlates with, and may have been the cause of, the middle Albian (top of PZ Albian 2) extinction of the American orbitolinids. The extinction of the orbitolinids revealed that the Western Pacific province was split into two sub-provinces, with extinction occurring at the end of the early Albian (top of PZ Albian 1) in the Northwest Pacific sub-province, and at the end of the Albian (top of PZ Albian 4) in the subprovince that is today South East Asia (on the margins and west of the Wallace Line). The final near extinction of the orbitolinids occurred at the end of the Cenomanian in the Tethyan province, which coincides with, and may have been caused by, global anoxic oceanic events that correlate with a near-peak Mesozoic eustatic sea level high-stand that led to the overall global collapse of the paleotropical reef ecosystem at that time.

show abstract

Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Global evolution and paleogeographic distribution of mid-Cretaceous orbitolinids

BouDagher‐Fadel

Price

2019

UCL Open Environ

View full text Add to dashboard Cite

show abstract

Upper Cretaceous wedge‐top to foredeep architecture in the United Arab Emirates: Insights from the Faiyah Anticline

et al. 2020

View full text Add to dashboard Cite

Facies architecture and benthic foraminiferal biostratigraphy were interpreted to reconstruct the depositional environments of the Upper Campanian-Maastrichtian Qahlah and Simsima formations in the Faiyah Anticline Range, north-central United Arab Emirates. Obduction of the Oman ophiolite controlled the palaeo-configuration of the Upper Cretaceous deposits and resulted in an irregular palaeogeography which caused rapid lateral and vertical facies changes and the building up of 19 types of facies. The Qahlah Formation was deposited dominantly as an inner clastic wedge facies association containing alluvial fan, alluvial plain, and proximal shallow marine mass-flow deposits. The Simsima Formation is represented by deposits characteristic of variable settings, including intertidal, restricted lagoon, inner edge shallow platform, and forereef shelf that formed in the outer carbonate wedge. Towards the southwest of the Faiyah Anticline Range, the Simsima Formation exhibits distal turbidites and contains remobilized carbonate conglomerates and marl that were deposited in a foredeep environment. This lateral variation has been caused by tectonics associated with increased global sea level. A tectonically-driven long-time hiatus caused the absence of Danian age strata. From the sequence stratigraphic perspective, three forced sequence boundaries are reported within the Upper Campanian-Maastrichtian successions. This sequence boundaries match well with those documented from the entire Arabian Plate.

show abstract

Alveolinids from the Lower Indus Basin, Pakistan (Eastern Neo‐Tethys): Systematic and biostratigraphic implications

et al. 2021

View full text Add to dashboard Cite

The alveolinid group of larger benthic foraminifera has been vastly studied in western and central Neo-Tethys, but less well analysed in eastern Neo-Tethys. In this study, 19 Ypresian (Ilerdian-Cuisian) and Early Lutetian species of Alveolina have been identified and their biometrics, taxonomy, and biostratigraphic correlation with western and central Neo-Tethys discussed. The Taxa of Early Ypresian age (SBZ5-9) includes Alveolina vredenburgi, A. dedolia, A. subpyrenaica, A. cf. subpyrenaica, A. moussoulensis, A. aragonensis, A. decipiens, A. cylindrata, and A. ilerdensis. The Late Ypresian age (SBZ10-12) taxa includes A. ruetimeyeri A. oblonga, A. haymanensis, A. lehneri, A. cosinensis cosigena, A. aff. frumentiformis, A sp. aff. A. azzarolii, and A. elliptica. The Early Lutetian age (SBZ13) taxa include A. stercusmuris and A. keili. The identified species have a close affinity to those reported from other areas of the Tethyan realm.However, some of these Alveolina species are considered to have stratigraphic ranges longer than formerly reported. The first appearance of A. ilerdensis (SBZ8-10) is recorded earlier in SBZ7. The first appearance of A. ruetimeyeri (SBZ10-11) is recorded earlier in SBZ-9. The study provides more evidence for understanding the evolution of the Alveolina species and their biostratigraphic distribution in the eastern Tethyan realm.

show abstract

Evolution and Geological Significance of Larger Benthic Foraminifera

Cited by 12 publications

References 215 publications

Global evolution and paleogeographic distribution of mid-Cretaceous orbitolinids

Global evolution and paleogeographic distribution of mid-Cretaceous orbitolinids

Upper Cretaceous wedge‐top to foredeep architecture in the United Arab Emirates: Insights from the Faiyah Anticline

Alveolinids from the Lower Indus Basin, Pakistan (Eastern Neo‐Tethys): Systematic and biostratigraphic implications

Contact Info

Product

Resources

About