[2] The Upper Triassic is well exposed in Swabia, Franconia, Alsace and Lorraine and Luxembourg; it extends from Basel on the east side of the Rhine into Hanover, and through England into Scotland and north-east Ireland; it appears flanking the central plateau of France and in the Pyrenees and Sardinia.
In south Sweden, the lower portion contains coal-bearing strata, as in the Himalayas, Japan, Tibet, Burma, eastern Siberia and in Spitsbergen.
Traditionally it contained the following subdivisions: The Keuper covers a large area in the Midlands and around the flanks of the Pennine range; it reaches southward to the east Devon coast, northeastward into Yorkshire and northwestward into Northern Ireland and southernmost Scotland.
[3] The Keuper is not rich in fossils; the principal plants are cypresslike conifers (Walchia, Voltzia) and a few calamites with such forms as Equisetum arenaceum and Pterophyllum jaegeri.
Avicula contorta, Protocardium rhaeticum, Terebratula gregaria, Myophoria costata, M. goldfassi, Lingula tenuessima, and Anoplophoria lettica may be mentioned among the invertebrates.