The time interval is of growing international interest and research is being actively pursued by ISCS members. Zhuravlev Palaeontological Institute, Russian Academy of Sciece, ul. Profsoyuznaya 123, Moscow 117647, Russia. W rzburg, Germany. The ISCS's voting members were selected to maintain a balance between regional experience and the expertise of various stratigraphic and paleontologic disciplines.
Expertise is supplemented by corresponding members from individual countries or regions.
Corresponding members are encouraged to communicate with ISCS working groups and the ISCS executive to actively participate in the development of a global stage-level chronostratigraphic classification of the Cambrian System. The Regional Correlation Charts Working Group is active in production of regional correlation charts for the Cambrian System. The Neoproterozoic-Cambrian Working Group develops documentation for correlation of the global lower boundary stratotype of the Cambrian System. The ISCS Chairman is a voting member of the Cambrian-Ordovician Boundary Working Group and Correlation Chart Working Group coordinator. See also IUGS homepage .