All studies focused on the evaluation of paleoecological variability over geological time must be linked to a specific age or interval, which can defined using different scales (biostratigraphic, chronostratigraphic, geochronological orbital). Therefore, integrated are essential allow comparisons data from locations and/or assess evolutionary and other events through time. Here we use new metho...

large benthic foraminifera and dasycladalean green algae are the most common and important (micro) fossils in lower cretaceous shallow-water sediments of the tethyan realm. in this paper, we introduced such taxa and their importance in age dating of lower cretaceous strata in the kopet-dagh sedimentary basin. also, according to determinations of index taxa (fauna and flora) in this period, the ...

New and previous fossil remains resulting biostratigraphy of the El Imperial Formation at Arroyo del Imperial, Quebrada de La Horqueta, Cañón Atuel key sections are analyzed, while faunal relationships among them clarified. Two diachronnous faunas, pTS TSAIII associations, relatives to Tivertonia-Streptorhynchus assemblage recognized constrained early late Bashkirian Moscovian ages, respectivel...

Palynological investigations have been carried out on samples from the Upper Devonian Hongguleleng Formation of Western Junggar, Xinjiang, NW China. In total, 26 miospore species belonging to 19 genera and 28 acritarch assigned recognized lower member Fm. in Bulongguoer section. The palynofloral assemblages, particular taxa, are similar those eastern European early Famennian Corbulispora vimine...

Abstract The record of brachiopods in the Lower Toarcian Balearic Islands is described after a reassessment previous works and new samplings Tramuntana Range Mallorca. recognized species have been assimilated to assemblages Iberian Tenuicostatum Serpentinum biozones. Moreover, detailed comparison with other Western Tethys basins study dispersion brachiopod faunas relation Early Oceanic Anoxic E...

The study of planktonic foraminifera in Jorband section reveals two major events in Campanian- Maastrichtian boundary and early-late Maastrichtian bio-diversification. In this study, occurrence and species richness of planktonic foraminifera in Jorband area show the warm marine environment dominant during early to late Campanian and it could be correlating by tropical and subtropical biozones. ...

The Gurpi Formation constitutes the source rock for petroleum in the oil-rich South Iranian Basin.Gurpi Formations is well distributed along Zagros Foreland Basin particularly in the north west of the Zagros (Lorestan Province). For Microbiostratigraphy and Paleobathymetric studies of the Gurpi Formation in the central part of Lorestan two stratigraphic sections including Sultan and Amiran sect...

For the lithostratigraphy and microbiostratigraphical studies, a stratigraphical section (named Dareh-Goshayesh) has selected and is located in southeast of Maragheh city, south of eastern Azerbaijan province in the northwest of Iran. The thickness of successions in the selected stratigraphic section is measured about 223.6 m. The mentioned studied stratigraphic section is composed of two clast...