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palaeodesert
palaeodesert n. 
/ˈpeɪlɪə(ʊ)dɛzət/,
Brit. /ˈpalɪə(ʊ)dɛzət/
, /ˈpalɪə(ʊ)dɛzət//ˈpeɪlɪə(ʊ)dɛzət/U.S. /ˈpeɪlioʊˌdɛzərt/
Geology a desert which existed at some time in the past./ˈpeɪlioʊˌdɛzərt/ΚΠ
1959 Endeavour 18 32/1 The palaeodesert of the Permian of England is typified by the Penrith sandstones of the Eden Valley.
1979 U.S. Geol. Surv. Prof. Paper No. 1052. 236/1 In the Botucatú paleodesert, southern air masses moved northward, leaving their traces mainly in Pouań and São Paulo.
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