Only few million frozen safely by magic. Like stone humans all over the world was frozen in place. Till earth was livable again.  
Giant monster crabs, giant birds, 
The shark men, a species of shark that evolved to live on land an grew large with simple tools . Raiders mostly.
EARTH now a island world , which one main landmass an 1000s of little islands.  Many humans who woke from Stasis woke in random spots in the world, some die right away, being under 1000s of pounds of dirt,
Tropical n dead