Chasmosaurs+-+2nd+Quarter

=//__chasmosaurs__//=

-Their frills has holes in them to make it fell weightless.




===they lived in North America during the Late Cretaceous period Many, but not all, also had two longer brow horns They also had a frill, which was longer than the basal length of their skulls The most widely known chasmosaurines are species of //Chasmosaurus//, and //Triceratops// 2 different types of chasmosaur. //Chasmosaurus// fossils were first recovered in 1902 but were thought to be from a previously-known short-frilled ceratopsian.===


 * Its name means 'opening lizard' refering to the large frill on it head.