Upland floras (Chaloner, 1958), clastic substrate inhabitors (Dimichele et al., 1985), extrabasinal floras (Pfefferkorn, 1980), dryland floras (Havlena, 1960), seamforming Flöznahe and more distant Flözfremde (Daber, 1959; Havlena, 1961) mesophilous and xerophilous floras (Havlena, 1971), Callipteris-Walchia assemblage (Gothan and Gimm, 1930; Gothan and Remy, 1957), Megalopteris-Cordaites assemblage (Cross, 1977; Leary, 1981; Read and Mamay, 1964), Gigantopteris flora and Callipteris flora (Read and Mamay, 1964), early Permian floras (White, 1934), roof nodule floras (Stopes and Watson, 1907), the Mesophytic flora (Frederiksen, 1972), and “Permian” aspect (Elias, 1936a,b), are some of the terms that have been devised in recognition of the observation that many Late Paleozoic plant communities did not form coal swamp peats and their vegetational composition changed in response to global tectonism. The peat swamps clearly changed floral composition through time (Phillips, et al., 1974; Phillips, 1981; Dapples and Hopkins, 1969), but can be reasonably easily characterized, because “coal” swamp plants were commonly deposited in situ, or very near their sites of growth.