Huayangosaurus: Profile of an Early Stegosaur Huayangosaurus Huayangosaurus (Wah-YANG-o-SAWR-us; “Huayang lizard”) is a genus of stegosaurian dinosaur that lived during the Middle Jurassic period, approximately 168 to 163 million years ago. Its fossils have been discovered in the Dashanpu Formation in Sichuan Province, China. The name “Huayang” is an old name for Sichuan, and “saurus” […]
Hudiesaurus: Profile of a Prehistoric Giant Hudiesaurus Hudiesaurus (HOO-dee-SAWR-us; “Butterfly Lizard”) is a genus of large sauropod dinosaur that roamed East Asia during the Late Jurassic period, approximately 160 million years ago. Its name comes from the Chinese word “hudie” (butterfly) and the Greek “sauros” (lizard), referring to a distinctive butterfly-shaped bony process found on
Huehuecanauhtlus Huehuecanauhtlus (WEH-weh-kah-NOWT-luss; “ancient duck”) is a genus of hadrosauroid dinosaur, a type of plant-eating dinosaur closely related to the “duck-billed” dinosaurs, that lived during the Late Cretaceous period, about 85.8 to 83.5 million years ago (Santonian stage). Its fossils were discovered in what is now Coahuila, Mexico. The name comes from the Nahuatl words
Hulsanpes: Profile of a Small Theropod Dinosaur Hulsanpes Hulsanpes (HULL-san-peez; “Hulsan foot”) is a genus of small theropod dinosaur that lived during the Late Cretaceous period, approximately 75 to 72 million years ago, in what is now Mongolia. The name refers to the Khulsan locality in the Gobi Desert where its fossils were found, combined
Hungarosaurus: Profile of a Prehistoric Giant Hungarosaurus Hungarosaurus (HUN-gah-roh-SAWR-us; “Hungarian lizard”) is a genus of nodosaurid ankylosaurian dinosaur that lived during the Late Cretaceous period, about 85 million years ago (Santonian stage), in what is now Hungary. The name honors the country of Hungary, where its fossils were first discovered in the Iharkút bauxite mine.
Huxleysaurus: Profile of a Prehistoric Giant Huxleysaurus Huxleysaurus (HUCKS-lee-SAWR-us; “Huxley’s lizard”) is a name that has been suggested for a type of ornithopod dinosaur from the Early Cretaceous period in what is now England. However, Huxleysaurus is generally considered a nomen dubium, which means it is a “doubtful name” in science because the fossil material
Hylaeosaurus: Profile of a Prehistoric Giant Hylaeosaurus Hylaeosaurus (HIE-lay-o-SAWR-us; “Forest Lizard” or “Wealden Lizard”) is a genus of ankylosaurian dinosaur that lived during the Early Cretaceous period, approximately 140 to 136 million years ago, in what is now England. It was one of the first dinosaurs ever to be scientifically described, named by Gideon Mantell
Hypacrosaurus Hypacrosaurus (high-PACK-roh-SAWR-us; “near the highest lizard”) is a genus of hadrosaurid or “duck-billed” dinosaur that lived during the Late Cretaceous period, approximately 75 to 67 million years ago. Fossils of Hypacrosaurus have been discovered in North America, specifically in Alberta, Canada, and Montana, USA. The name refers to its tall build, as it was
Hypselosaurus: Profile of a Prehistoric Giant Hypselosaurus (HIP-seh-loh-SAWR-us; “High-Ridge Lizard”) Hypselosaurus is a genus of titanosaurian sauropod dinosaur that lived during the Late Cretaceous period, specifically in the Maastrichtian age, around 70 to 66 million years ago. Its fossils have been found primarily in southern France, with possible remains also reported from Spain and Romania.
Hypselospinus Hypselospinus (HIP-seh-lo-SPY-nus; “High Spine” or “Tall Spine”) is a genus of styracosternan iguanodontian dinosaur that lived during the Early Cretaceous period, approximately 140 to 133 million years ago (Valanginian stage), in what is now England. The name Hypselospinus refers to the very tall neural spines on its back vertebrae. This dinosaur was originally named
