On some Upper Carboniferous Coelenterata from Bjørnøya and Spitsbergen

Abstract

Twenty species of Coelenterata (Chaetetida, Tabulata and Tetracoralla) are described. The Ambigua Limestone fauna is compared with coeval coral faunas from other regions. The systematic position of the described species is mostly discussed in the light of ontogenetic investigations. It is suggested that the lower limit of the Ambigua Limestone is Lower Kasimovian.