Pareiasaurs were relatively abundant, globally-distributed, herbivorous parareptiles of the mid to late Permian. The basal-most forms, all members Bradysauria, are restricted Guadalupian (mid-Permian) South Africa and went extinct in Capitanian near top Tapinocephalus Assemblage Zone. Currently four species recognized this group: Bradysaurus seeleyi, B. baini, Embrithosaurus schwarzi Nochelesau...

Climate change has exerted a major influence on the biosphere in historical times, altering the geographic range of many species and elevating the extinction risk in both marine and terrestrial realms. This study investigates marine community change during the major early Permian climatic transition from the late Paleozoic ice age to a largely ice-free greenhouse climate. Quantitative counts of...

Four supergiant and numerous giant gasfields have been discovered in the Southwest Iran which produce from Permian-Triassic carbonates belong to the upper member of Dalan Formation and Kangan Formation. In this research a detailed biostratigraphic, microfacies and sequence stratigraphic study of the late Middle Permian to Triassic successions was undertaken from 850 thin sections prepared from ...

An assessment performed using raman spectroscopy has found space in the black shales of Cisuralian-age rocks Karoo Basin South Africa, particularly those from Guadalupian Ripon, Cisuralian Whitehill and Prince Albert Formations. It is used conjunction with geochemical screening techniques such as organic petrology programmed pyrolysis. In turn, combination these for thermal maturity sedimentary...

Abstract Previous studies on multiple sulfur isotopes ( 32 S, 33 and 34 S) in sedimentary pyrite at the end‐Permian suggested a shoaling of anoxic/sulfidic deep‐water contributing to extinction. This scenario is based an assumption that cycle was largely controlled by benthos activity, though stratigraphic correlation between records ichnofabrics sediments has not yet been examined. We report i...