Middle Eocene-Early Miocene larger foraminifera from Dhofar (Oman) and Socotra Island (Yemen)

Serra‐Kiel, Josep; Gallardo-Garcia, A.; Razin, Philippe; Robinet, Jean-Charles; Roger, Jack; Grélaud, Carine; Leroy, Sylvie; Robin, Cécile

doi:10.1007/s12517-015-2243-3

Cited by 57 publications

(31 citation statements)

References 41 publications

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“…Therefore, the overall range of Peneroplis thomasi has to be considered as Rupelian–Burdigalian (SBZ 21-SBZ 25). Austrotrillina asmariensis has been mostly reported from the Rupelian to Aquitanian in Europe and the Middle East (e.g., Adams 1968 ; Accordi et al 1998 ; Gallardo et al 2001 ; Sirel 2003 ; Bassi et al 2007 ; Gedik 2015 ; Serra-Kiel et al 2016 ; Ferràndez-Cañadell and Bover-Arnal 2017 ). The only occurrence of this species from the Burdigalian of the Far East (Upper Te, Borneo) is by BouDagher-Fadel et al ( 2000 ).…”

Section: Discussionmentioning

confidence: 99%

Early Miocene larger benthic foraminifera from the northwestern Tethyan Seaway (NW Iran): new findings on Shallow Benthic Zone 25

Yazdi-Moghadam

Sarfi

Ghasemi-Nejad

et al. 2021

Int J Earth Sci (Geol Rundsch)

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The lower Miocene marine units of NW Iran (Hamedan-Miandoab area) were studied to establish a high-resolution biostratigraphy framework in the context of European standard biozonation (SBZ zonal scheme). The units are dominated by larger and small benthic foraminifera together with coralline algae and corals. Due to its position in the Tethyan Seaway between the Mediterranean and Indo-Pacific, the investigated area has high significance in palaeobiogeography. Seven species of benthic foraminifera were described, including Miogypsina globulina, Amphistegina bohdanowiczi, Elphidium crispum, Elphidium sp. 1, Borelis curdica, Austrotrillina asmariensis, and Peneroplis thomasi. The occurrence of Miogypsina globulina in the shallow-marine carbonates of the studied sections documents the Burdigalian SBZ 25 Zone. Austrotrillina asmariensis and Peneroplis thomasi occur with M. globulina. Simultaneously, their stratigraphical range is extended to the Burdigalian in the Middle East. Based on the discovery of lower Miocene deposits in the Hamedan-Miandoab area (previously mapped as Oligocene-Miocene units), the stratigraphy of northwest Central Iran is revised. The biostratigraphic results also present a more precise chronology for the marine transgression in the study area, initiating in the late early Miocene. The coralline algal assemblages and the abundance and diversity of larger benthic foraminifera indicate that shallow-marine Qom Formation got deposited in tropical to subtropical warm waters.

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Section: Discussionmentioning

confidence: 99%

Early Miocene larger benthic foraminifera from the northwestern Tethyan Seaway (NW Iran): new findings on Shallow Benthic Zone 25

Yazdi-Moghadam

Sarfi

Ghasemi-Nejad

et al. 2021

Int J Earth Sci (Geol Rundsch)

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“…In the literature we find records of D. aydimi, either in open nomenclature or as belonging to other species of Dictyoconus (see synonymy), from SE Turkey (Özgen-Erdem and Sinanoğlu, 2016), Iraq, Iran (Zagros Zone; e.g. Nafarieh et al, 2019; see Figure 5), Iraq (BouDagher-Fadel, 2018), and Oman (Gallardo-Garcia and Serra-Kiel in Serra-Kiel et al, 2016). All these occurrences are part of the Arabian Plate with carbonate platform sedimentation during the Paleogene at the southern Neotethyan margin (Figure 6 1 ).…”

Section: Remarks On Palaeobiogeographymentioning

confidence: 99%

“…Referring to the holotype specimen ( Fig. 38.1 in Serra-Kiel et al, 2016), being the only megalospheric specimen illustrated in axial section with embryo, the authors describe the deuteroconch "with beams" (if any, these should be termed rafters?). In our opinion, the deuteroconch is not well discernible in the holotype specimen and the occurrence of several "beams" followed by the neanic chambers with just one rafter and one intercalary beam would be a curious feature.…”

Section: Coiling Of Initial Stagementioning

confidence: 99%

“…In our opinion, the deuteroconch is not well discernible in the holotype specimen and the occurrence of several "beams" followed by the neanic chambers with just one rafter and one intercalary beam would be a curious feature. In any case, the presence of skeletal elements in the deuteroconch of Dictyoconus, although debatable with respect to suprageneric classification (Orbitolininae vs. Dictyoconinae), is accepted as species criterion (D. indicus with and D. aegyptiensis without skeletal elements; Davies, 1939;Hottinger and Drobne, 1980;Hottinger, 2007; Gallardo-Garcia and Serra-Kiel in Serra-Kiel et al, 2016). Again, such a feature is not an adequate criterion for the separation of Rogerella from Dictyoconus.…”

Section: Coiling Of Initial Stagementioning

confidence: 99%

“…Assemblages of middle Eocene (Bartonian) larger benthic foraminifera (LBF), including Orbitolinidae, have been studied from the Hoya Formation of SE Turkey (northeastern Diyarbakır), belonging to the northernmost part of the Arabian Plate (Özgen-Erdem and Sinanoğlu, 2016;Sallam et al, 2018). Large-sized dictyoconids previously referred to Dictyoconus aegyptiensis (Chapman), usually occur above limestones with Somalina stefaninii Silvestri, This form has been recognized as Rogerella aydimi described recently by Gallardo-Garcia and Serra-Kiel in Serra-Kiel et al (2016) from the middle-upper Eocene of Oman. The present finding from Turkey represents the first find out of its typelocality.…”

Section: Introductionmentioning

confidence: 99%

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Dictyoconus aydimi (Gallardo-Garcia and Serra-Kiel, 2016) comb. nov., larger benthic foraminifera from the Middle-Upper Eocene of the Middle East (SE Turkey, Iraq, SW Iran, Oman): New evidence for Arabian Plate faunal provincialism

Özgen-Erdem¹,

Schlagintweit²,

Sinanoğlu³

2021

Turkish J Earth Sci

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IntroductionLarger agglutinated conical benthic foraminifera are a typical constituent of Paleogene inner platform carbonates (e.g., Hottinger and Drobne, 1980;Vecchio and Hottinger, 2007;Powell, 2010). As in the Lower and Upper Cretaceous (e.g., Cherchi et al., 1981), the representatives of the Dictyoconinae displayed a biogeographic distribution pattern during the Paleogene with different assemblages on both sides of the Atlantic Ocean (e.g., Carribean Bioprovince, Hottinger and Drobne, 1980; Goldbeck and Langer, 2009, Figure 27) for this group of agglutinated conical foraminifera. Paleocene taxa (e.g., Coskinon, Dictyoconus, Fallotella, and Karsella) have been reported from the Taurides of Turkey (provinces of Elazığ and Kars) (e.g., Sirel, 2015). Assemblages of Middle Eocene (Bartonian) larger benthic foraminifera (LBF), including Orbitolinidae, have been studied from the Hoya Formation in SE Turkey (north eastern Diyarbakır), belonging to the northernmost part of the Arabian Plate (Özgen-Erdem and Sinanoğlu, 2016;Sallam et al., 2018). Large-sized dictyoconids, previously referred to as Dictyoconus aegyptiensis (Chapman), usually occur above limestones with Somalina stefaninii Silvestri. They have been recognized as Rogerella aydimi Gallardo-Garcia and Serra-Kiel, as described recently in Serra-Kiel et al. (2016), from the Middle-Upper Eocene of Oman. The present findings from Turkey represent the first discovery of its type-locality. The aim of the present study was to 1) comment and revise its taxonomic status and 2) constrain its paleobiogeographic distribution, also including further specimens from the Jahrum Formation in Iran. Geological setting 2.1. Geological overviewThe south eastern Anatolian region forms the northern part of the Arabian Platform (Figure 1A) and consists of the Bitlis-Pütürge Crystalline Melange, Precambrian Basement, and Early Paleozoic-Cenozoic sedimentary deposits (Rigo de Righi and Cortesini, 1964;Sungurlu, 1974;Şengör and Yılmaz, 1981). The geological framework of this region was shaped by the Late Mesozoic and Cenozoic closure of the multibranched Neotethyan Ocean (Şengör and Yılmaz, 1981). Important folding structures developed during the Neotectonic period as a result of the N-trending compressional tectonic regime. The Cambrian, Aptian-Cenomanian, Campanian-Maastrichtian, and Middle Eocene periods are represented by marine sequences, which indicate widespread transgression Abstract: Rogerella aydimi Gallardo-Garcia and Serra-Kiel was described from the Priabonian Haluf Member of the Aydim Formation, Oman. Based on new finds from the Bartonian Hoya Formation of SE Turkey and the Jahrum Formation of Iran, its taxonomic status is discussed herein. It is concluded that it represents a species of Dictyoconus with a simple subepidermal network (1 rafter, 1 intercalary beam) below a thin epiderm. The stratigraphic range of D. aydimi known thus far is Bartonian-Priabonian or Shallow Benthic Zone 17-20. The distribution of D. aydimi gives further evidence for a Middle-Late Eocene ...

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

et al. 2021

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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.

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Middle Eocene-Early Miocene larger foraminifera from Dhofar (Oman) and Socotra Island (Yemen)

Cited by 57 publications

References 41 publications

Early Miocene larger benthic foraminifera from the northwestern Tethyan Seaway (NW Iran): new findings on Shallow Benthic Zone 25

Early Miocene larger benthic foraminifera from the northwestern Tethyan Seaway (NW Iran): new findings on Shallow Benthic Zone 25

Dictyoconus aydimi (Gallardo-Garcia and Serra-Kiel, 2016) comb. nov., larger benthic foraminifera from the Middle-Upper Eocene of the Middle East (SE Turkey, Iraq, SW Iran, Oman): New evidence for Arabian Plate faunal provincialism

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

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