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T rex ancestor unearthed in Brazil by Kellner team
Scientists in Rio de Janeiro unveiled Santanaraptor a sheep dog sized dinosaur found in Ceara state 1991 as an ancestor of Tyrannosaurus rex. The team led by Alexander Kellner reports superb preservation and potential Southern Hemisphere origins for T rex linking Africa and South America through evolution.
MENTIONED IN THIS ARTICLE
AP Proto
Alexander Kellner
National Museum
Rio de Janeiro
Brazil
Kellner
Federal University of
Ceara
Ceara State
Africa