Dinosaur ColumnDinosaur TypesDinosaur CharacteristicsDinosaur FossilsEra What happened to the frill of Protoceratops as it grew? Share this page
Jurassic 
![[Latest Research] What Was the Function of Spinosaurus's Giant "Sail"? Exploring the Mysteries of Thermoregulation and Underwater Locomotion](https://dinosaurmuseum.jp/wp/wp-content/uploads/eyecatch_spinosaurus-sail-function_en-1024x512.webp)
![[Latest Discovery] A Third Type of Skin, Neither Scales Nor Feathers? Meet "Haolong dongi," a New Dinosaur Species Covered Entirely in Spikes](https://dinosaurmuseum.jp/wp/wp-content/uploads/eyecatch_dinosaur-spiky-skin-discovery_en-1024x512.webp)
