What is "regurgitalith"

n. (context palaeontology English) the fossilised remains of stomach contents that have been regurgitated by an animal.

Regurgitaliths are the fossilized remains of stomach contents that have been regurgitated by an animal. They are trace fossils and can be subdivided into ichnotaxa. Regurgitaliths might provide useful information on the diet of the animal, but are difficult to relate to any particular species.