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Maniraptora is a clade of coelurosaurian dinosaurs which includes the birds and the non-avian dinosaurs that were more closely related to them than to Ornithomimus velox. It contains the major subgroups Avialae , Dromaeosauridae , Troodontidae , Oviraptorosauria , and Therizinosauria .
The private sale of fossils has attracted criticism from paleontologists, as it presents an obstacle to fossils being publicly accessible to research. [2] Most countries where relatively complete dinosaur specimens are commonly found have laws against the export of fossils. The United States allows the sale of specimens collected on private ...
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.
Coelurosauria is a subgroup of theropod dinosaurs that includes compsognathids, tyrannosaurs, ornithomimosaurs, and maniraptorans; Maniraptora includes birds, the only known dinosaur group alive today. [5] Most feathered dinosaurs discovered so far have been coelurosaurs.
Oviraptoridae is a group of bird-like, herbivorous and omnivorous maniraptoran dinosaurs. Oviraptorids are characterized by their toothless, parrot-like beaks and, in some cases, elaborate crests. They were generally small, measuring between one and two metres long in most cases, though some possible oviraptorids were enormous.
Scansoriopterygidae (meaning "climbing wings") is an extinct family of climbing and gliding maniraptoran dinosaurs.Scansoriopterygids are known from five well-preserved fossils, representing four species, unearthed in the Tiaojishan Formation fossil beds (dating to the mid-late Jurassic Period) of Liaoning and Hebei, China.
The group (along with all maniraptoran dinosaurs) is close to the ancestry of birds. Some researchers such as Maryanska et al (2002) and Osmólska et al. (2004) have proposed that they may represent primitive flightless birds. [3] [4] The most complete oviraptorosaur specimens have been found in Asia. [5]
Fossilized partial skull of the Late Cretaceous duck-billed dinosaur Augustynolophus †Augustynolophus †Augustynolophus morrisi †Axonoceras †Bacchites †Baculites †Baculites capensis †Baculites yokoyamai – or unidentified comparable form; Barbatia †Barrettia †Basilemys † Belleza; Bernaya †Beudanticeras †Bochianites ...