The Rheic Ocean was a Paleozoic ocean between the large continent Gondwana to the south and the microcontinents Avalonia and others to the north. It formed during the Cambrian and was destroyed during the Hercynian (European name) and Alleghenian (North American name) orogenies during the Carboniferous. Image:Mantell's Iguanodon restoration.jpg This article is a . You can help My English Wiki by expanding it.