Anning identified 'bezoar stones' as coprolites (fossilised faeces) in 1824.
In 1824, Mary Anning revolutionized the understanding of "bezoar stones" by proposing they were actually coprolites, or fossilized feces. This realization amplified scientific knowledge about prehistoric life, offering insights into the diets and ecosystems of extinct species. Her suggestion was presented to renowned geologist William Buckland, who took the idea to the scientific community, broadening the scope of paleontological research. This accurate identification allowed experts to extract biological and ecological information from the coprolites, marking a critical advancement in the study of fossils and ancient ecosystems.