CHAPTER XXIII.
PERMIAN OR MAGNESIAN LIMESTONE GROUP.
Fossils of Magnesian Limestone and Lower New Red distinct from the Triassic--Term Permian--English and German equivalents--Marine shells and corals of English Magnesian limestone--Palaeoniscus and other fish of the marl slate--Thecodont Saurians of dolomitic conglomerate of Bristol--Zechstein and Rothliegendes of Thuringia--Permian Flora--Its generic affinity to the carboniferous--Psaronites or tree-ferns 301