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Numerous fusulinids were found in the middle part of the Jamal Formation (Ney Eshkiny section) in the Tabas region of Central Iran. The assemblage includes 12 species of 12 genera (Zarodella, ?Grovesella, Pseudoendothyra, Nankinella, Schubertella, Dunbarula, Yangchienia, Chusenella, Verbeekina, Pseudodoliolina, Neoschwagerina, and Sumatrina. This association characteristic of the upper part of the Murgabian Stage is found in many Permian sections in the Tethyan Realm. [ABSTRACT FROM AUTHOR]

Three Guadalupian allochthonous debris flow beds in a slope-to-basin facies succession in northern Gilleland Canyon of the northwest GlassMountains were sampled for fusulinid biostratigraphic age-dating. The deeper water allochthonous debris flow beds underlie the shelf-margin packstone-grainstone facies of theWillis RanchMember of theWord Formation (3rdWord Limestone Bed of King 1931) (middle Guadalupian, earlyWordian), which forms a distinct bench all along the west wall of Gilleland Canyon (114-169m above base of measured section). The uppermost GV-RC1 sample, from 104 m in the measured section, contained the fusulinids Parafusulina sellardsi, P. antimonioensis, P. deliciasensis, P. rothi, P. trumpyi, and P. boesei. SampleGV-CM1, from 83min the section, contained P. sellardsi, P. deliciasensis, P. rothi, P. boesei, and P. lineata. The lowest sample GV-CM20, from 76 m in the section, contained only P. deliciasensis and P. wildei. According to previous studies, most of these species appear in Roadian-aged strata and range upward into early Wordian-aged strata, but the common occurrence of P. sellardsi in the upper two samples, and the occurrence of P. antimonioensis in the uppermost sample confirm an early Wordian age. [ABSTRACT FROM AUTHOR]

Fusulinids from the Emarat Formation of the Central Alborz are studied to establish species belonging to such genera as Schubertella, Biwaella, Triticites, Tumefactus?, Pseudoschwagerina, Zellia, and Praepseudofusulina. The new species Pseudoschwagerina gadukensis is described. It is supposed that the origin of early Asselian and later Pseudoschwagerina and Zellia was polyphyletic, thus involving the problems of their taxonomy. [ABSTRACT FROM AUTHOR]

The Batain Group of the northeastern coastal plain of Oman consists of offshore and deeper water deposits that accumulated in the Batain Basin and which were subsequently obducted onto the eastern margin of Oman. The oldest deposits of the Batain Group are the marly limestones of the Qarari Unit that have been dated as Early to Late Permian or Murgabian by different workers. Recently discovered outcrops of the Qarari Unit from the northern Batain plain are richly fossiliferous including the occurrence of fusulinids in three separate outcrops. The fusulinids represented are two species of Skinnerella - a subgenus of Parafusulina: Parafusulina (Skinnerella) visseri Reichel and the new taxon P. (S.) arabica. The most likely age of the described fusulinids is estimated as Kubergandian. The major marine transgression of the Tethyan realm that began in the Yakhtashian-Bolorian appears to have begun earlier in the Batain Basin than in other parts of Arabia and the Gulf, where it is represented by the Khuff Formation of Murgabian-Dorashamian age.

Fusulinids from the Chili Formation are studied in the Rahdar section of the Kalmard block west of the town of Tabas, Central Iran. The Kalaktash and Halvan fusulinid complexes are revealed in the section. The location of the Halvan complex over the Kalaktash one confirms its relatively younger (Late Sakmarian-Early Artinskian) age. The Halvan complex was previously considered to be Asselian. Three new species ( Parazellia rahdarensis, Nonpseudofusulina bozorgniai, and Eoparafusulina rahdarensis) and one new subspecies ( Benshiella khorasanensis compacta) are described. [ABSTRACT FROM AUTHOR]

This monograph is an overview of the Carboniferous-Permian stratigraphy in Iran based on our recent research on fusulinids combined with relevant data from literature. In the first part of the monograph, we consider the Carboniferous and Permian stratigraphic scales used to characterize and correlate the sections studied. The second part is devoted to description of Carboniferous and Permian deposits in the principal tectonic structures of Iran, i.e., in the Alborz, Yazd, Kalmard, Tabas, Sanandaj-Sirjan and Zagros blocks, and correlation of their sections. Fusulinid assemblages, their comparison with concurrent assemblages of the East European platform and degree of endemism are described in the third part. In the concluding part, we discuss certain trends in the distribution of fusulinids and some problems of their stratigraphy that can be inferred from the data analyzed. The monograph includes 11 text figures, a correlation chart, and a summary table of fusulinid taxa (453 species and subspecies of 107 genera and subgenera) discovered in Iran. Species most characteristic of fusulinid assemblages described in the work are figured in 32 plates. [ABSTRACT FROM AUTHOR]

The Vazhnan Formation, formerly attributed to the Sakmarian is now shown to be of the Gzhelian-Asselian age. Accordingly it is correlative with the concurrent Zaladou Formation of Central Iran and Dorud Group of Alborz. This suggests a vast transgression that covered the greater part of the Iranian territory in the terminal Carboniferous-initial Permian. The work includes brief characterization of fusulinids found in the formation section. [ABSTRACT FROM AUTHOR]

New Permian sections have been studied in the Halvan Mountains of Iran, northwestward of Tabas. In addition to the Chili, Sartakht, and Hermez formations established here earlier, the new Rizi Formation is distinguished, underlying deposits of the Triassic Sorkh Shale Formation. Conodonts, fusulinids, and smaller foraminifers found in the rocks date the formations. In particular, it is demonstrated that the Chili Formation bearing the Kalaktash fusulinid assemblage is of Sakmarian age. The age of the Halvan fusulinid assemblage from clasts in the breccia-conglomerate at the Sartakht Formation base is reevaluated, and it is shown to be late Sakmarian but not Asselian in age. The Bolorian-Kubergandian age is established for the greater part of the Sartakht Formation. Correlation of the sections studied with the other Permian sections in different regions of Iran showed their lithological and paleontological specifics as compared to the latter. On the other hand, the sections in question are surprisingly similar in both respects to sections in the Central Pamirs. Fusulinids of the Kalaktash and Halvan assemblages are figured in four plates, and five new species belonging to the genera Rugosochusenella, Benshiella, Parazellia, and Nonpseudofusulina are described. [ABSTRACT FROM AUTHOR]

As is argued in this work, genera Zarodella Sosnina, 1981, and Grovesella Davydov et Arefifard, 2007, could be ancestors of the genus Pamirina Leven, 1970, which gave birth to all higher fusulinids. Two former genera similar to each other are distinguished conventionally to a certain extent in a large flexible taxon of small primitive polymorphic fusulinids close to the Bashkirian genera Eostaffella, Plectostaffella, and Semistaffella. Without essential changes, this taxon existed for a long time from the Bashkirian Age of the Late Carboniferous to the Bolorian Age of the Permian. The genus Pamirina branched off that taxon in the Yakhtashian Age. Along with Zarodella and Grovesella, the genus Pamirina is attributed to the order Ozawainellida. [ABSTRACT FROM AUTHOR]

Fusulinids from the Rosh Gol, Mastuj, Reshun Gol (East Hindu Kush) and Baroghil (West Karakorum) localities are studied. Five successive fusulinid assemblages from the Rosh Gol section characterize the Sakmarian (?), Yakhtashian-Bolorian, and Kubergandian stages of the Permian. Fusulinids of the Sakmarian (?) Stage are discovered in the Baroghil locality. In the Mastuj and Reshun Gol localities, rocks of natural outcrops, talus cones, and pebbles of the Cretaceous conglomerates yield predominantly the Kubergandian fusulinids accompanied sometimes by the Sakmarian (?) and Bolorian forms. Four new species Monodiexodina talenti, Nonpseudofusulina conaghani, N. yarkhunensis, and N. mawsoni are described. [ABSTRACT FROM AUTHOR]

The Permian section situated northwest of Tabas in the Halvan Mountains is studied and fusulinids occurring in the section are described. The Chili, Sartakht, and Hermez formations distinguished in the section are separated by horizons of bauxitic laterite and belong to the Khan Group formerly ranked as a synonymous formation. Fusulinids occur at two levels in the section. The lower one confined to the Chili Formation yields the so-called Kalaktash fusulinid assemblage of the late Sakmarian age. The second late Asselian assemblage has been discovered in pebbles from conglomerate-breccia in the basal laterite of the Sartakht Formation. A brief characterization of fusulinids is presented and three new species are described. The new Benshiella genus is discriminated from the Rugosofusulinidae family. As Skinner and Wilde (1965, 1966) changed the original diagnosis of the Pseudofusulina genus, we suggest, regarding all species, which have been attributed to this genus but do not satisfy the new diagnosis, as representing the new Nonpseudofusulina genus. [ABSTRACT FROM AUTHOR]

Sections and fusulinids of the Bolorian (presumably) and Kubergandian (lower part) stages in the Sanandaj-Sirjan tectonic zone are described. Two fusulinid assemblages are distinguished in a most complete section near Sirjan. The lower one is represented by Skinnerella, Paraleeina, and relatively primitive Misellina forms, whereas Armenina, Kubergandella, and Yangchienia species appear in the upper assemblage and suggest its early Kubergandian age. Accordingly, the lower assemblage is attributed to the Bolorian Stage, although it is lacking fusulinids typical of this stage except for the primitive Misellina morphotypes. Fusulinids from the Tange-Darchaleh section near Qomsheh (Shahreza) are typical of the Kubergandian Stage. The described three new species of the genus Skinnerella are close to morphotypes known from younger (Murgabian) deposits and represent their ancestral forms most likely. [ABSTRACT FROM AUTHOR]

Ammonoids, conodonts, and fusulinids from the type sections of the Roadian and contiguous stages in western Texas and adjacent areas are analyzed and partially revised. Four successive Roadian ammonoid assemblages are distinguished and correlated with conodont zones; data on their distribution are presented. Based on the results obtained, the Roadian Stage is identified in the Boreal and Tethyan regions. Boundaries of the Roadian Stage defined accurately in the type sections of Texas are hardly recognizable elsewhere. Recognition of the upper boundary is especially difficult. Occurrence of Roadian fossils means that deposits of this age are present in a sequence, but they cannot be differentiated from underlying and overlying beds. Like in the type area, the stage lower boundary based on conodonts is above the level of significant changes in marine biota within the Boreal and Tethyan realms as well. The upper boundary is not marked by noticeable biotic events either. Correlation of the Roadian deposits is imprecise because their boundaries are formally established using distribution of relatively rare conodonts. [ABSTRACT FROM AUTHOR]

Gzhelian deposits established in Iran for the first time are described. They rest with a considerable hiatus on the Moscovian deposits constituting, along with Asselian strata, an integral carbonate succession of the Zaladu Formation in eastern Iran. The Zaladu Formation is correlative with the Vazhnan Formation of the Abadeh region (central Iran) and the Dorud Formation of the Elburz (Alborz) Mountains. An assemblage of Gzhelian fusulinids from the studied section is well comparable with the assemblage of the Ultradaixina bosbytauensis Zone distinguished in the uppermost Gzhelian of the Darvaz, Fergana, the Southern Urals, Donetsk Basin, and Carnic Alps. Two new species of the genus Schellwienia ( Sch. anarakensis and Sch. stocklini) are described. Gzhelian and Asselian fusulinids found in the section are figured in two paleontological plates. [ABSTRACT FROM AUTHOR]

Different fusulinids have been identified in the Lercara Formation (Sicily). They are: Reichelina sp., Schubertella paramelonica, Toriyamaia (?) sp., Neofusulinella lantenoisi, Yangchienia compressa, Rauserella staffi, Darvasites contractus, Chalaroschwagerina (Taiyuanella?) aff. davalensis, Levenella aff. evoluta, Pamirina darvasica, and Neoschwagerina ex gr. craticulifera. Small Permian foraminifers, as well as the calcispherid Asterosphaera pulchra also exist. The microfossils indicate reworking of different Permian stages, at different periods of time, and possibly also of the Mississippian (Early Carboniferous). All these resediments have been deposited within the Lercara Formation, a series definitely belonging to the Triassic period. Therefore, due to this reworking, Sicily appears as a controversial area for establishing biostratigraphic and palaeobiogeographic correlations in the Permian period. To cite this article: L. Carcione et al., C.R.Palevol 3 (2004). [Copyright &y& Elsevier]