1-7 of 7 Books
The Permian and Triassic systems and their mutual boundary
The Permian and Triassic systems and their mutual boundary
By International Permian-Triassic Conference (1971 University of Calgary)

Early Permian fusulinids from the Owens Valley group, east-central California
By Robert T. Magginetti

Lower Permian colonial rugose corals, western and northwestern Pangaea
By Jerzy Fedorowski
Stratigraphie et variations isotopiques du carbone dans le Permien superieur et le Trias inferieur de quelques localities de la Neotethys (Turquie, Oman et Iran)
Stratigraphie et variations isotopiques du carbone dans le Permien superieur et le Trias inferieur de quelques localities de la Neotethys (Turquie, Oman et Iran)
By Sylvain Richoz

Brachiopods near the Permian-Triassic boundary in South China
By Guirong Xu

Permskie i triasovye tetrapody Vostochnoĭ Evropy
By M. F. Ivakhnenko
Permian-Triassic boundary in the Kap Stosch Area, East Greenland
Permian-Triassic boundary in the Kap Stosch Area, East Greenland
By Curt Teichert