Study of Golmakan,s Plant Macrofossils North East of Iran

Binalud Mountain is geographically the continuation of Alborz Mountain but because of some facies similarities and the effects of folding, it is considered to be the transition zone between Central Iran and Alborz. In this study, eight plant macrofossil species are identified from Shemshak Formation in Golmakan, Binalud. They are Coniopteris hymenophylloides, Klukia westi, Sphenobaiera longifolia, Sphenobaiera cf. pulchella, Czekanowskia rigida, Nilssonia macrophylla, Nilssonia acuminata and Nilssonia feriziensis. According to their stratigraphical distribution, Late Liassic - Early Dogger age can be inferreded for this assemblage.