Before revision: Earth Science News, Maps, Dictionary, Articles, Jobs American Geophysical Union American Geosciences Institute European Geosciences Union Geological Society of America Geological Society of London Video-interviews with famous geologists Geology OpenTextbook Chronostratigraphy benchmark
After revision: European Federation of GeologistsEarth Science News, Maps, Dictionary, Articles, Jobs American Geophysical Union American Geosciences Institute European Geosciences Union Geological Society of America Geological Society of London Video-interviews with famous geologists Geology OpenTextbook Chronostratigraphy benchmark