Abstract Here we present a detailed accounting of organic microfossils from late Ediacaran sediments Finland, the island Hailuoto (northwest Finnish coast), and Saarijärvi meteorite impact structure (~170 km northeast Hailuoto, mainland Finland). Fossils were recovered fine-grained thermally immature mudstones siltstones are preserved in exquisite detail. The majority forms sourced filamentous ...

The oldest reported occurrence of cryptospores supposed to derive from land plants (embryophytes) is currently considered be in the Middle Ordovician. two genera Virgatasporites and Attritasporites, described 1960ʹs Early Ordovician (Tremadocian) Algeria, are morphologically close miospores, therefore pose a dilemma, because these spore-like microfossils recorded before first appearance plant d...

The Geirud Formation consists mainly of clastic sediments which are interbedded with limestone stringers. This rock unit is well-exposed along the Central Alborz Range in northern Iran. The Geirud Formation rests unconformably on the Mila Formation (Upper Cambrian) and is conformably overlain by the Mobarak Formation (Lower Carboniferous). This study was undertaken to determine the geologi...

A totall of 500 Early Permian samples from the Chal-i-Sheh Formation in the Zagros Basin were examined palynollogically in order to determine the stratigraphical age of the formation and to assess the palaeogeopaphicd relatianships of this basin to the Southern and Northern Hemispheres during the Early Permian. Fifty-eight taxa were recorded including 46 pollen, 10 spore and 2 acritarch spe...

for the first time, an assemblage of cryptospores, which includes 10 species belonging to nine genera, from the upper ordovicianstrata, is being reported, in iran. these cryptospore assemblages were recovered from the upper part of ghelli formation., from theeastern alborz mountain range. these peri-gondwanan cryptospores have been classified based on their morphology (monad, truedyad, pseudody...

a totall of 500 early permian samples from the chal-i-sheh formation in the zagros basin were examined palynollogically in order to determine the stratigraphical age of the formation and to assess the palaeogeopaphicd relatianships of this basin to the southern and northern hemispheres during the early permian. fifty-eight taxa were recorded including 46 pollen, 10 spore and 2 acritarch species...

reasonably diverse and fairly preserved palynoflora, dominated by land-derived palynomorphs (miospores) in association with minor marine entities, such as dinoflagellate cysts, foraminiferal test linings, and acritarchs, occur in surface samples of the hojedk formation, at the eshkeli stratigraphic section, north of kerman. spores with radiosymmetrical symmetry (trilete spores), bisaccate and m...