Download or read book Brachiopods Near the Permian-Triassic Boundary in South China written by Guirong Xu and published by . This book was released on 1994 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: ovaloides, Squamularia formilla, Hustedia orbicostata, Rostranteris ptychiventria, and Notothyris bifoldes).The Cathaysia chonetoides-Chonetinella substrophomenoides assemblage zone and the Cathaysia sinuata-Waagenites barusiensis assemblage zone represent respectively faunas of the lower Changxingian and the upper Changxingian in clastic lithofacies; whereas the Peltichia zigzag-Prelissorhynchia triplicatioid assemblage zone and the Spirigerella discusella-Acosarina minuta assemblage zone represent faunas in limestone lithofacies.