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"Bayosaurus" is the informal name given to an as yet undescribed genus of theropod dinosaur. The name was coined by paleontologists Rodolfo Coria, Philip J. Currie, and Paulina Carabajal in 2006. It apparently was an abelisauroid from the Turonian Cerro Lisandro Formation of Neuquén, Argentina, around 4 m (13 ft) long.
Birds were therefore the only dinosaur lineage to survive the Cretaceous–Paleogene extinction event approximately 66 million years ago. Dinosaurs can be divided into avian dinosaurs (birds) and non-avian dinosaurs, which are all dinosaurs other than birds. Birds are feathered theropod dinosaurs and constitute the only known living dinosaurs.
Yi is a genus of scansoriopterygid dinosaur from the Late Jurassic of China.Its only species, Yi qi (Mandarin pronunciation: [î tɕʰǐ]; from Chinese: 翼; pinyin: yì; lit. 'wing' and 奇; qí; 'strange'), is known from a single fossil specimen of an adult individual found in Middle or Late Jurassic Tiaojishan Formation of Hebei, China, approximately 159 million years ago.
According to Lu et al. (2007), Y. youngi can be distinguished from Y. huangi based on the following characteristics: [1] the sixth cervical vertebra is the longest among the vertebral column; the neural spines of the posterior cervical vertebrae are short with an expanded distal end, which is wider than its anteroposterior length
Yaverlandia (meaning "of Yaverland Point/Yaverland Battery") is a genus of maniraptoran dinosaur.Known from a partial fossil skull (MIWG 1530) found in Lower Cretaceous strata of the Wessex Formation (Upper Silty Bed; Vectis Formation) on the Isle of Wight.
This list of nicknamed dinosaur fossils is a list of fossil non-avian dinosaur specimens given informal names or nicknames, in addition to their institutional catalogue numbers. It excludes informal appellations that are purely descriptive (e.g., "the Fighting Dinosaurs", "the Trachodon Mummy").
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Dinosaurs stand with their hind limbs erect in a manner similar to most modern mammals, but distinct from most other reptiles, whose limbs sprawl out to either side. [35] This posture is due to the development of a laterally facing recess in the pelvis (usually an open socket) and a corresponding inwardly facing distinct head on the femur. [36]