From Wiktionary, the free dictionary
From paleo- + elevation.
paleoelevation (plural paleoelevations)
- (geology) Elevation (of land) that occurred in the geological past.
1999, Alan Graham, Late Cretaceous and Cenozoic History of North American Vegetation:In the Basin and Range province paleoelevations were calculated for two Late Eocene floras in northeastern Nevada (Povey et al., 1994).