Helveticosaurus and Ticinosuchus, Doug Henderson

Waves and wind beat salt and stone—ingredients for mountains—masses of rock that will be thrust high enough to collect glaciers on their peaks. But now, there are no alpine summits. Instead, stony islands lie low, battered by waves from the Tethys, their barren surfaces crawling with reptiles. Helveticosaurs, blunt-faced, nasty-fanged, drag their hulks across the raw rocks and snort salt from their noses. When their beds are driven skyward by colliding continents, the only water those stones will know will be ice.