Oviraptorosaurs ("egg thief lizards") are a group of feathered maniraptoran dinosaurs from the Cretaceous Period of what are now Asia and North America. They are distinct for their characteristically short, beaked, parrot - like skulls, with or without bony crests atop the head. The group includes the Oviraptoridae, the Caenagnathidae and several species which do not belong to either of these families, including Avimimus and Caudipteryx, and Incisivosaurus. They ranged in size from Caudipteryx, which was the size of a turkey, to the 8 meter long, 1.4 ton Gigantoraptor. The group (along with all maniraptoran dinosaurs) is close to the ancestry of birds. Analyses like those of Osmolska et al. (2004) suggest that they may in fact represent primitive flightless birds.
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| - Oviraptorosaurs ("egg thief lizards") are a group of feathered maniraptoran dinosaurs from the Cretaceous Period of what are now Asia and North America. They are distinct for their characteristically short, beaked, parrot - like skulls, with or without bony crests atop the head. The group includes the Oviraptoridae, the Caenagnathidae and several species which do not belong to either of these families, including Avimimus and Caudipteryx, and Incisivosaurus. They ranged in size from Caudipteryx, which was the size of a turkey, to the 8 meter long, 1.4 ton Gigantoraptor. The group (along with all maniraptoran dinosaurs) is close to the ancestry of birds. Analyses like those of Osmolska et al. (2004) suggest that they may in fact represent primitive flightless birds.
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| - Fossil skeleton of Khaan mckennai
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| - * Avimimidae
* Caenagnathidae
* Caudipteridae
* Oviraptoridae
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| - (Barsbold, 1976)
- Oviraptorosauria
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| abstract
| - Oviraptorosaurs ("egg thief lizards") are a group of feathered maniraptoran dinosaurs from the Cretaceous Period of what are now Asia and North America. They are distinct for their characteristically short, beaked, parrot - like skulls, with or without bony crests atop the head. The group includes the Oviraptoridae, the Caenagnathidae and several species which do not belong to either of these families, including Avimimus and Caudipteryx, and Incisivosaurus. They ranged in size from Caudipteryx, which was the size of a turkey, to the 8 meter long, 1.4 ton Gigantoraptor. The group (along with all maniraptoran dinosaurs) is close to the ancestry of birds. Analyses like those of Osmolska et al. (2004) suggest that they may in fact represent primitive flightless birds. Paul Sereno, 2005 named the group Oviraptoriformes for all dinosaurs closer to Oviraptor than to modern birds. Therizinosaurs are usually considered members of this larger group, alongside the oviraptorosaurs.
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