The International Commission on Stratigraphy is the largest and oldest constituent scientific body in the International Union of Geological Sciences (IUGS). Its primary objective is to precisely define global units (systems, series, and stages) of the International Chronostratigraphic Chart that, in turn, are the basis for the units (periods ...2014/02 ( PDF or JPG) 2013/01 ( PDF or JPG) 2012 ( PDF or JPG) 2010 ( PDF or JPG) 2009 ( PDF or JPG) 2008 ( PDF or JPG) Global chronostratigraphical correlation table for the last 2.7 million years. Click here to download the pdf file and here to see the explanation of the correlation table. Ordovician Chronostratigraphic Chart.About. The International Subcommission on Jurassic Stratigraphy (ISJS) comprises an international group of scientists from universities, geological surveys, research organisations, industry and museums who conduct scientific research on strata of Jurassic age (c. 201 – 143 million years ago).In order to advance the global understanding of the Jurassic, we specialise in combining expertise ...Official homepage of the International Subcommission on Cambrian Stratigraphy (ISCS) a subcommission of the International Commission of Stratigraphy and the International Union of Geological Sciences.. The primary objectives of the ISCS are to define the series and stages of the Cambrian by means of the internationally agreed rules of the ICS and to provide the international forum for ...Subcommission on Cretaceous Stratigraphy. Overall objectives of the Subcommission on Cretaceous Stratigraphy (SCS) and fit within IUGS science policy are: to establish a standard global stratigraphic subdivision and nomenclature for the Cretaceous, as part of the ICS standard global stratigraphic scale; to produce a stratigraphic table ...The results of the study of the Mechetlino section in the light of the requirements for the section submitted to the International Commission on Stratigraphy as a GSSP for the Lower boundary of the Stage have been published in Permophiles, n. 69 (Chernykh, 2020) and in Palaeoworld, v. 29, Issue 2 (Chernykh et al., 2020).Compilation of selected papers published on Permian topics in 2020. Stratigraphy. Bagherpour, B., Bucher, H., Vennemann, T., Schneebeli-Hermann, E., Yuan, D.X., Leu ...The Permian is a geologic period which extends from 298.9 ± 0.15 to 251.902 ± 0.024 Ma. It is the last period of the Paleozoic Era, following the Carboniferous Period and preceding the Triassic Period of the Mesozoic Era. The Permian System has been subdivided into three series.State Key Laboratory of Palaeobiology and Stratigraphy. Nanjing Institute of Geology and Palaeontology. Chinese Academy of Sciences. 39 East Beijing Road, Nanjing, Jiangsu 210008, P.R. China. Tel:+86-25-83282137.