Dictyoconus aydimi (Gallardo-Garcia and Serra-Kiel, 2016) nov. comb., 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

10.35463/j.apr.2020.02.03 ◽

2020 ◽

pp. 69-83

Author(s):

Felix Schlagintweit

Keyword(s):

Benthic Foraminifera ◽

Junior Synonym ◽

Arabian Plate ◽

Lithostratigraphic Units ◽

Valid Taxon ◽

Tarbur Formation ◽

Se Turkey ◽

First Time ◽

Upper Maastrichtian

Larger benthic foraminifera from the upper Maastrichtian Auradu Formation of Somalia exhibit striking matches with the assemblages from the time-equivalent Tarbur Formation of Iran and other, but less well studied lithostratigraphic units in SE Turkey (e.g., Garzan Fm.). Some taxa, among also new ones, described from Somalia need taxonomic updates (revision, synonymy, re-instatement). Dukhania? cherchii Luger is considered a junior synonym of Acordiella? tarburensis Schlagintweit & Rashidi, and Pseudorbitolina schroederi Luger is re-instated and considered a valid taxon, different from the Campanian P. marthae Douvillé of the western Tethyan domain. The genus Cyclopsinella Galloway is reported for the first time from the upper Maastrichtian of Iran.

BROECKINELLA HENSONI N. SP., A NEW LARGER BENTHIC FORAMINIFERA FROM THE UPPER MAASTRICHTIAN OF IRAN AND A REVISION OF THE GENUS BROECKINELLA HENSON, 1948

10.35463/j.apr.2020.02.02 ◽

2020 ◽

pp. 57-67

Author(s):

Felix Schlagintweit ◽

Koorosh Rashidi

Keyword(s):

Benthic Foraminifera ◽

Upper Cretaceous ◽

Test Chamber ◽

First Record ◽

Generic Diagnosis ◽

Zagros Zone ◽

Sw Iran ◽

Tarbur Formation ◽

Upper Maastrichtian

new larger benthic foraminifera is described as Broeckinella hensoni from the upper Maastrichtian Tar-bur Formation of SW Iran (Zagros Zone). In comparison to the type species of the genus, Broeckinella arabica Henson, which also occurs in the Tarbur Formation, the new species has distinctly larger dimensions (e.g., size and thickness of test, chamber height). The first record of a microspheric specimen of B. arabica shows previously unrecorded annular chambers in the final test stage. Therefore, the generic diagnosis is herein emended. In the Tarbur Formation, both B. hensoni n. sp. and B. arabica occur in foraminiferal-algal wackestones. However, B. arabica occurs in a wider range of microfacies, including packstones and grainstones. It is assumed that Broeckinella originated in the Upper Cretaceous with Broeckinella neumannae Gendrot. The upper Albian Broeckinella aragonensis Peybernès is herein transferred to the porcellaneous genus Peneroplis Montfort.

Applications of nummulitids and other larger benthic foraminifera in depositional environment and sequence stratigraphy: an example from the Eocene deposits in Zagros Basin, SW Iran

Facies ◽

10.1007/s10347-008-0151-7 ◽

2008 ◽

Vol 54 (4) ◽

pp. 499-512 ◽

Cited By ~ 27

Author(s):

Mohammad H. Adabi ◽

Afshin Zohdi ◽

Ali Ghabeishavi ◽

Hassan Amiri-Bakhtiyar

Keyword(s):

Sequence Stratigraphy ◽

Benthic Foraminifera ◽

Depositional Environment ◽

Zagros Basin ◽

Sw Iran

DICTYOCONELLA HENSON, 1948, UPPER CRETACEOUS LARGER BENTHIC FORAMINIFERA: A TAXONOMIC REVISION WITH THE ESTABLISHMENT OF GUSICELLA GEN. NOV. (TYPE-SPECIES DICTYOCONELLA MINIMA HENSON)

10.35463/j.apr.2021.02.01 ◽

2021 ◽

pp. 3-13

Author(s):

FELIX SCHLAGINTWEIT ◽

KOOROSH RASHIDI

Keyword(s):

Benthic Foraminifera ◽

Type Species ◽

Upper Cretaceous ◽

Taxonomic Revision ◽

New Combination ◽

Arabian Plate ◽

Western Asia ◽

Mass Extinction Event ◽

Tarbur Formation

In his monograph on Mesozoic-Cenozoic Larger Benthic Foraminifera from the area of Middle East and south-western Asia, Henson (1948) erected the genus Dictyconella for more or less "compressed-conical" dictyoconids including D. complanata (type-species) and D. minima. Both are however, structurally completely different, e.g. aligned (in the latter) versus alternating structural elements (in the former), and cannot either belong to the same genus or the same subfamily (Dictyoconinae versus Dictyorbitolininae). Therefore, the new genus Gusicella is erected with the type-species Dictyoconella minima, resulting in the new combination Gusicella minima. Gusicella represents the only taxon of the Dictyorbitolininae in the Upper Cretaceous Global Community Maturation Cycle of Larger Benthic Foraminifera (here: conical agglutinated). Due to the revision, Dictyoconella is described as a monospecific genus and an assumed Maastrichtian newcomer which, like Gusicella, became extinct shortly afterwards, namely at the K-Pg boundary mass-extinction event. Both taxa appear to be restricted to the former Arabian Plate of the southern Neotethyan margin. The new data provided are based on material from the Maastrichtian Tarbur Formation of southwestern Iran (Zagros Zone).

Biostratigraphy and Systematic Paleontology of the Oligocene Larger Benthic Foraminifera from Fars Province, Zaros Basin, SW Iran

Iranian Journal of Science and Technology Transactions A Science ◽

10.1007/s40995-017-0155-7 ◽

2017 ◽

Vol 42 (3) ◽

pp. 1285-1308 ◽

Cited By ~ 1

Author(s):

Tahereh Habibi

Keyword(s):

Benthic Foraminifera ◽

Fars Province ◽

Systematic Paleontology ◽

Sw Iran

Larger Benthic Foraminifera from the Panna and Mukta Fields Offshore India: Paleobiogeographical Implications

The Journal of Foraminiferal Research ◽

10.2113/gsjfr.49.3.243 ◽

2019 ◽

Vol 49 (3) ◽

pp. 243-258

Author(s):

Laura J. Cotton ◽

V. Paul Wright ◽

Andrew Barnett ◽

Willem Renema

Keyword(s):

Shallow Water ◽

Benthic Foraminifera ◽

Late Eocene ◽

Marine Biodiversity ◽

Upper Eocene ◽

Geographic Ranges ◽

Extinction Event ◽

Global Events ◽

Insight Into

Abstract A previously undocumented, diverse assemblage of very shallow-water larger benthic foraminifera (LBF) is described from the Panna-Mukta fields, offshore India. This location lies at the margin of the late Eocene to early Miocene Arabian Peninsula marine biodiversity hotspot. The assemblage has similar characteristics to those from the Middle East, Oman and Turkey, but shares little in common with onshore western Indian assemblages. In addition, the material contains several unusual and possibly new taxa, and extends the geographic ranges of several existing LBF. The succession spans the Eocene and Oligocene, with an unconformity between the middle and upper Eocene. As such it offers insight into the response of shallow-water taxa to the Eocene–Oligocene Transition extinction event from an unusual setting in a little studied region. Our data show that LBF taxonomic richness in the Panna Mukta fields is comparable with highly diverse assemblages found in Oman, indicating it may be an eastward extension of this high diversity region. Moreover, significant decreases in diversity are seen between the middle and upper Eocene and the upper Eocene and Oligocene. Major extinctions are known to occur in global LBF records at both of these levels, and the Panna Mukta succession therefore further confirms these are global events, extending across the platform and having a dramatic (at least short-term) effect on high biodiversity regions.

Orbitolinopsis cenomaniensis n. sp., a new larger benthic foraminifera (Orbitolinidae) from the middle-?late Cenomanian of the Sarvak Formation (SW Iran, Zagros Zone): a regional marker taxon for the Persian Gulf area and Oman

Revue de Micropaléontologie ◽

10.1016/j.revmic.2020.100413 ◽

2020 ◽

Vol 67 ◽

pp. 100413 ◽

Cited By ~ 1

Author(s):

Felix Schlagintweit ◽

Mohsen Yazdi-Moghadam

Keyword(s):

Benthic Foraminifera ◽

Persian Gulf ◽

Sarvak Formation ◽

Zagros Zone ◽

Sw Iran ◽

The Persian Gulf

BROECKINELLA HENSONI N. SP., A NEW LARGER BENTHIC FORAMINIFERA FROM THE UPPER MAASTRICHTIAN OF IRAN AND A REVISION OF THE GENUS BROECKINELLA HENSON, 1948

10.35463/j.apr.2020.01.06 ◽

2020 ◽

pp. 51-61 ◽

Cited By ~ 2

Author(s):

FELIX SCHLAGINTWEIT ◽

KOOROSH RASHIDI

Keyword(s):

Benthic Foraminifera ◽

Upper Cretaceous ◽

Test Chamber ◽

First Record ◽

Generic Diagnosis ◽

Zagros Zone ◽

Sw Iran ◽

Tarbur Formation ◽

Upper Maastrichtian

A new larger benthic foraminifera is described as Broeckinella hensoni from the upper Maastrichtian Tarbur Formation of SW Iran (Zagros Zone). In comparison to the type species of the genus, Broeckinella arabica Henson, which also occurs in the Tarbur Formation, the new species has distinctly larger dimensions (e.g., size and thickness of test, chamber height). The first record of a microspheric specimen of B. arabica shows previously unrecorded annular chambers in the final test stage. Therefore, the generic diagnosis is herein emended. In the Tarbur Formation, both B. hensoni n. sp. and B. arabica occur in foraminiferal-algal wackestones. However, B. arabica occurs in a wider range of microfacies, including packstones and grainstones. It is assumed that Broeckinella originated in the Upper Cretaceous with Broeckinella neumannae Gendrot. The upper Albian Broeckinella aragonensis Peybernès is herein transferred to the porcellaneous genus Peneroplis Montfort.