The English Zechstein and related topics /

Wydane 1986

Extinction : how life on earth nearly ended 250 million years ago /

od Erwin, Douglas H., 1958-
Wydane 2006

A monograph of Carboniferous and Permian Foraminifera : (the genus Fusulina excepted) /

od Brady, Henry Bowman, 1835-1891
Wydane 1876

The Permian extinction and the Tethys : an exercise in global geology /

od Şengör, A. M. Celâl
Wydane 2009

The Permian reef complex of the Guadalupe Mountains region, Texas and New Mexico : a study in paleoecology /

od Newell, Norman Dennis, 1909-
Wydane 1953

Permian sphenopsids from Antarctica : descriptions and distribution of species of the fossil plant genera Phyllotheca, Schizoneura, Paracalamites, and Umbellaphyllites /

od Rigby, J. F.
Wydane 1969

The Permian timescale /

Wydane 2018

Permian-Triassic evolution of Tethys and western circum-Pacific /

Wydane 2000

Permian-Triassic Pangean basins and foldbelts along the Panthalassan margin of Gondwanaland /

Wydane 1994

The permo-triassic formations : a world review /

od Sherlock, Robert Lionel, 1875-
Wydane 1947

Stratigraphic boundary problems: Permian and Triassic of West Pakistan /

od Kummel, Bernhard, 1919-
Wydane 1970

The Zechstein facies in Europe /

Wydane 1987