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...

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...

Colonization of the land by plants most likely occurred in a stepwise fashion starting in the Mid-Ordovician. The earliest flora of bryophyte-like plants appears to have been cosmopolitan and dominated the planet, relatively unchanged, for some 30 million years. It is represented by fossilized dispersed cryptospores and fragmentary plant remains. In the Early Silurian, cryptospore abundance and...

Assemblages of cryptospores were reported and detailed for the first time from Upper Ordovician Brazil. These assemblages recovered diamictites shales with dropstones Iapó Formation, Rio Ivaí Group, Paraná Basin. The analyzed sequence represents Hirnantian glacial deposits containing well-preserved palynomorphs low thermal maturity total organic carbon. cryptospore comprise monads, dyads, perma...

Well-preserved miospore assemblages are recorded from the Late Ordovician (Katian-Hirnantian), Ghelli Formation in Pelmis-gorge at the north-eastern Alborz Mountain The palynomorphs were extracted from siliciclastic deposits which are well-dated by using of marine palynomorphs (acritarchs and chitinozoans). The encountered miospore assemblages consist of 14 genera (28 species: 26 cryptospores a...

volume Page 1 PROGRAM 10h00-10h20: E. Pétus, P. Gerrienne & C. Prestianni Physostoma cf. stellatum Holden : a Bashkirian spermatophyte from Bouxharmont (Belgium). 10h20-10h40: C. Prestianni, D. Fokan & P. Gerrienne Record of wildfires in the Famennian of Belgium. 10h40-11h00: P. Gonez & P. Gerrienne Comments on Cooksonia, a basal Eutracheophyte. 11h00-11h20: P. Gerrienne, C. Strullu-Derrien & P...