252.17±0.06–251.2 Ma
Recovery period after the Permian extinction, although ecosystems do not recover until the Olenekian
During the Induan (and most of the Olenekian), the region was covered by Pleuromeiales stands.
During this period, soil formation was low; the total biomass of these lycopsids was not particularly impressive, nor was the rate of erosion unusually high.
Few tree-sized species, and the soils would not have been strongly held.
This may well have been a worldwide phenomenon, in view of the global absence of Early Triassic coal deposits.