In 1878, coal miners working beneath Belgium broke into a fossil chamber: The underground discovery transformed what scientists knew about dinosaurs

Belgian coal miners in 1878 unearthed a remarkable find. Deep underground, they discovered many Iguanodon skeletons. This discovery was significant as it provided more complete specimens than ever before. It allowed scientists to revise their understanding of Iguanodon's biology. The Bernissart fossils changed dinosaur paleontology from theory to fact.