Anatomical knowledge of early chondrichthyans and estimates of their phylogeny are improving, but many taxa are still known only from microremains. The nearly cosmopolitan and …
The uppermost Famennian (Upper Devonian) is marked by the reappearance of trilobites following their almost complete disappearance at the end of the Frasnian. Among these …
به منظور بررسی ریزرخساره ها و محیط رسوبی سازند بهرام در جنوب خاوری انارک، برش چینه شناسی کوه بندعبدالحسین انتخاب و مورد مطالعه قرار گرفت. سازند بهرام در این برش 366 متر ضخامت دارد …
Frasnian deposits are very widespread in Iran (Central Iran and Alborz Range) and brachiopoda (specially Rhynchonellida) are considered as their index fossils. The genera: …
Khoshyeilagh Formation (Bozorgnia, 1973), contains the most complete successions of the Middle Devonian-Lower Carboniferous rocks in Eastern Alborz. This formation includes …
Well exposed Tournaisian, mainly carbonate, rocks of the Mobarak Formation in the area of Shahmirzad village, Central Alborz, Iran, yielded almost 200 chondrichthyan teeth and scales…
Daniel Vachard (1947-2024), world-renowned for his micropalaeontological work on Carboniferous-Permian carbonate facies, has left us a scientific body of work that is exceptional in …
This study identifies three new neoselachian tooth taxa from the Middle and Upper Triassic. On the basis of morphological and histological characters, Rhomaleodus budurovi, nov. gen. …
The lacustrine ecosystem of the early Ladinian of Chang 7 Member of Yanchang Formation in the Ordos Basin (Shaanxi, North China) was proposed as the earliest known Mesozoic-…