cawiki Santanaraptor placidus; cswiki Santanaraptor; dewiki Santanaraptor; enwiki Santanaraptor; eswiki Santanaraptor; fawiki سانتانادزد. Santanaraptor placidus. Kellner, Santanaraptor (signifiant «voleur de la formation Santana») est un genre de dinosaures. Full reference: A. W. A. Kellner. Short note on a new dinosaur (Theropoda, Coelurosauria) from the Santana Formation (Romualdo Member, Albian).
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Santanaraptor was originally santanaraptor placidus to be a maniraptoran theropod when it was first discovered. However, it is now thought to be a basal coelurosaur based on several features present on the femur.
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Santanaraptor was tabulated by Holtz as the first tyrannosauroid known from Santanaraptor placidus a position also found by Delcourt and Grillo Ina new small theropod dinosaur called Santanaraptor placidus Fig.
It had already attracted worldwide attention in with a paper in Nature when parts of this fossil were found to contain fossilized soft tissue remains, including blood vessels and muscle tissues.
Later, init was proposed in a book chapter that Santanaraptor represented a tyrannosaurid… Therefore representing the first one santanaraptor placidus Gondwana. Later, additional studies indicated that not only Santanaraptor, but perhaps an Australian species named Timimus hermani, could also be a close relative to T-rex in Gondwana.
Fossil of one of the feet of Santanaraptor left, picture provided by R. Delcourt and a skeleton reconstruction of Santanaraptor in the National Museum of Brazil source: They updated and revised data sets to assess evolutionary relationships of the T-rex family in order to answer fundamental questions, such as: Which parts of the world did they inhabit?
And how did they move around those regions during the Mesozoic? Their results indicate some ambiguity concerning the Australian species Timimus but they found incredible agreement among santanaraptor placidus results concerning santanaraptor placidus placement of Santanaraptor as one of the earliest evolving members of the T-rex family.
Bibliografia[ modifica modifica wikitesto ] Kellner, Kellner and Campos, Boletim do Museu Nacional, Geologia. Boletim do Museu Nacional. Santanaraptor placidus, Apesteguia, and Chiarelli, The end of a myth: The mysterious ungual claw of Noasaurus leali. santanaraptor placidus