The Kasimovian Age is the third of four ages in the Pennsylvanian Epoch of the Carboniferous period. It lasted from approximately 306.5±1.0 to 303.9±0.9 million years ago. It was preceded by the Moscovian age and followed by the Gzhelian. This age is named after the town of Kasimov in Russia Image:Mantell's Iguanodon restoration.jpg This article is a . You can help My English Wiki by expanding it.