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Information Ruyangosaurus is a genus of titanosauriform sauropod dinosaur recovered from the Late Cretaceous Mangchuan Formation of China. The type species is R. giganteus, described in 2009 by a group of scientists from the Chinese Academy of Sciences and the Henan Geological Museum.[1] Along with Huanghetitan and Daxiatitan, Ruyangosaurus is among the largest dinosaurs discovered […]

Description Rukwatitan bisepultus is a species of titanosaur fromTanzania. It lived around 100 million years ago, during the middle Cretaceous. The species, which shared features with another southern African species, Malawisaurus dixeyi, measured 30 feet (9.1 m) from the head to the tip of the tail, and had forelimbs that were estimated around 6.5 feet […]

Pterosaurs Description Pterosaurs are flying reptiles of the extinct clade or orderPterosauria. They existed from the late Triassic to the end of the Cretaceous (228 to 66 million years ago). Pterosaurs are the earliest vertebrates known to have evolved powered flight. Their wings were formed by a membrane of skin, muscle, and other tissues stretching […]

Description The Plesiosauria or plesiosaurs are an order or clade of Mesozoic marine reptiles(marine Sauropsida), belonging to the Sauropterygia. Plesiosaurs first appeared in the latest Triassic Period, possibly in the Rhaetian stage, about 203 million years ago. They became especially common during the Jurassic Period, thriving until their disappearance due to the Cretaceous–Paleogene extinction event […]