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The continuous sequence of the Permian and the Lower Triassic Systems was fully examined paleontologically and sedimentologically in Abadeh region, Cenral Iran. Based on the correlation of the Permian in the Tethys province by means of fusulinid, ammonoid and conodont zonations together with brachiopod, coral and bryozoan fossils, it is concluded that the Upper Permian is reasonably classified into three stages, the Abadehian, the Dzhulfian, and the Dorashamian. Biostratigraphical and sedimentological study indicates a paraconformable relation between the Permian and Triassic, and the equivalent of the lower half of the Otoceras woodwardi zone is missing as judged from the conodont zones. The Dorashamian is older than the Griesbachian or Gangetian, and not the equivalent of the latter. The faunal change is related to not only local environmental change but universal causes. A remarkable attrition of species began in the Dzhulfian and reached a climax at the end of the Permian. Almost all the species had disappeared by the end of the Permian corresponding to the progressive shallowing and retreat of the sea. Rapid transgression and incoming of new organisms at the beginning of the Triassic is evident in the lithofacies and biofacies of the Lower Triassic.

The Upper Permian Kose group, the Lower and Middle Triassic Fukumoto group, the Upper Triassic Yanagi formation and Nakaiso conglomerate beds, the so-called Inkstone group, and basic intrusive rocks crop out in the vicinity of Fukumoto-mura in Okayama Prefecture., The Palaeozoic and Mesozoic formations in this district, together with the basic rocks, indicate that the "Maizuru Zone" extends into Okayama Prefecture about 130km., WSW of Maizuru in Kyoto Prefecture., The stratigraphy of the Palaeozoic and Triassic formations is shown in the following table., Norian?-Nakaiso conglomerate beds.,.,.,.,.,.,mainly conglomerate with sandstone, thickness 200m., unconformity? Carnian-Yanagi formation.,.,.,.,.,.,black shale and carbonaceous sandy shale, thickness 70m., fault Anisian-Miyano-oku formation.,.,.,.,.,.,dark blue calcareous sandy shale with shale and fine sandstone, thickness 300m., Kyogakubo formation.,.,.,.,.,.,alternation of shale and sandstone, thickness 270-300m., Scythian -Kusano formation.,.,.,.,.,.,mainly fine to medium sandstone with conglomerate, thickness 68-96m+., fault Upper Permian-Kose group.,.,.,.,.,.,mainly black shale with sandstone and conglomerate lens, thickness 350m -., The Kose group contains fusulinids such as Lepidolina, sp., and Yabeina, sp., and is correlated with the Upper Permian Kuma series in Kyushu., The Fukumoto group contains pelecypod-fossils such as Neobakevellia kanb i NAKAZAWA (MS.,), Myophoria, aff., laevigata, ALBERTI, Eumorphotis sp., nov, and "Pecten" sichoticus BITTNER, in the Kusano and Kyogakubo formations, and cephalopods such as Hollandites sp., "Danubites" sp., and Orthoceras sp., in the Miyano-oku formation., From these fossils the group is considered Scythian and Anisian in age., The group is in fault contact with the Kose group, but is supposed to overlie the Kose group unconformably., The Norian (?) Nakaiso conglomerate beds overlie the Kose and Fukumoto groups in angular unconformity as a result of a severe crustal movement of Ladinian or Carnian age.

A team of Japanese and Indian Geologists carried out detailed studies of the Permo-Triassic sections in the Srinagar region, Kashmir, during 1969. This report embodies certain conclusions arrived at in the light of these studies. The section at Guryul Ravine is described in detail, being the best in the Srinagar region. Lithological and faunistic comparisons with other areas examined are also referred to. The different faunistic zones of the Lower Trias of this area are compared with other important extra-Indian occurrences. The Zewan Series (Permian) at Guryul Ravine is succeeded by Lower Triassic beds. The arenaceous sediments pass into calcareous through argillaceous sediments. There is neither an intraformational nor interformational unconformity indicative of a hiatus in deposition. Many characteristic Permian elements survived in the lower part of the Lower Trias, constituting a zone of mixed fauna of Permo-Trias. This suggests a rapid faunal change from Permian to Lower Trias but not discontinuous. The lithology however supports a gradual change from Palaeozoic to Mesozoic. The advent of Lower Trias is marked by the appearance of characteristic species like Claraia stachei (BITTNER), SPATH in the dark shales. The paper also records a number of important Lower Triassic ammonoids (Otoceras, Glyptophiceras, etc.), which were so far not known from the Srinagar region. Considering the evolutionary position of some of the species of Otoceras, the boundary between the Permian and Trias is tentatively placed just below the advent of Claraia stachei.