Sea levels fluctuated but were in the most part high ... The UK's famous White Cliffs of Dover are just one of many Late Cretaceous chalk deposits. Chalk is laid down in marine environments, and the ...

The pile of 66-million-year-old, fossilized, regurgitated sea lilies was dated to the Cretaceous era ... and the organisms’ structures included chalk-like portions that were often regurgitated ...

and sandpipers all show up in the Cretaceous. In the warm, shallow seas that spilled onto the continents, the long-necked plesiosaurs gave way to the giant, snakelike mosasaurs. Rays and modern ...

While splitting a piece of chalk, he noticed unusual fragments ... between predators and prey and the food chains in the Cretaceous Sea," he added. Experts believe that the vomit is composed ...