NGUYEN DUC KHOA
Vien Dia chatva Khoang san
Abstract: Twenty species belonging to ten waagenophyllid genera were described. The following species are new: Waagenophyllum (W.) choaiense, Ipciphyllum bahonense, Parawentzelella canalifera langnacensis, Wentzelophyllum densicolumnatum and W. ipciphylloides. Laophyllum huulungensis Khoa, 1980 and Pseudohungia hatienensis Khoa, 1984 were re-studied and supplemented. Representatives of Huayunophyllum, Szechuanophyllum, and Wentzelophyllum were described for the first time from Vietnam.
Waagenophyllidae have been noted in Vietnam in the Asselian Schwagerina Biozone and in the upper part of the Changhsingian Palaeofusulina sinensis Biozone. Some differences between southern and northern Vietnamese coral faunas may have resulted from their development on the opposite shelf zones of the Indochinese microcontinent. Those differences are rather slight and both faunas belong to the Tethys Realm.
Key words: Waagenophyllidae, Rugosa, Permian, Vietnam
