Scutellosaurus, “the little shield lizard”, was a small 4.4 foot long armored dinosaur which lived in Arizona during the early Jurassic Period approximately 185 million years ago. At present, Scutellosaurus is the most common dinosaur known from the Kayenta Formation…. Read More ›
Scelidosaurus was a 12 foot long armored dinosaur which lived in Europe (and also possibly in North America) during the early Jurassic Period 200-195 million years ago. Scelidosaurus is the most well-known European early Jurassic dinosaur because numerous specimens have… Read More ›
Segisaurus was a 3 foot long theropod dinosaur which lived in northern Arizona during the early Jurassic Period 180 million years ago. Only one fragmentary skeleton has been found, discovered in 1933 within the Navajo Sandstone in Tsegi Canyon on… Read More ›
Introduction Siats, whose name is in reference to a monster from native Ute folklore, was a large meat-eating dinosaur which lived in Utah during the middle Cretaceous Period 98 million years ago. As far as we know, Siats was the… Read More ›
Megaraptor was a 25 foot long carnivorous dinosaur which lived in Argentina during the late Cretaceous Period 90 million years ago. The fossils of this animal were discovered by the Argentinian paleontologist Fernando Novas in northwestern Patagonia, Argentina in 1996…. Read More ›
Neovenator salerii was a 25 foot long meat-eating dinosaur which lived in England (and possibly other parts of Europe) during the early Cretaceous Period 125 million years ago. Fossils of this animal were first discovered in 1978 on the Isle… Read More ›
Introduction Gastonia was an armored dinosaur measuring approximately 16.5 feet long which lived in western North America during the early Cretaceous Period approximately 135-130 million years ago. The first specimens were found in eastern Utah in 1989, and more have… Read More ›
Acrocanthosaurus, meaning “high-spined lizard”, was a large 35 foot long meat-eating dinosaur which lived in North America during the middle of the Cretaceous Period approximately 115-110 million years ago. It is distinctive for the unusually tall neural spines on the… Read More ›
Kelmayisaurus was an obscure species of large meat-eating dinosaur which lived in northwestern China (the region sometimes referred to as Uyghurstan) during the early to middle Cretaceous Period 130-120 million years ago. In 1964, fossils belonging to several dinosaur species… Read More ›
Euhelopus was a sauropod dinosaur which lived in eastern China during the early Cretaceous Period approximately 130-112 million years ago. Fossils of this animal were found in the early 20th Century within the rocks of the Meng-Yin Formation within Shandong… Read More ›
