North Sea fossils point to plesiosaurs regurgitating shell remains

Geologist Dirk Knaust identified fossilized clumps in Jurassic rock cores drilled beneath the North Sea as plesiosaur regurgitalites, the remains of meals expelled after digestion. The material contains shells and other marine remains and dates to about 160 million years ago [sci.news#1][zmescience.com#1]. Corroded shell surfaces and a mixture of remains support the interpretation that the clumps