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5 giorni fa · Tyrannosauroidea (meaning 'tyrant lizard forms') is a superfamily (or clade) of coelurosaurian theropod dinosaurs that includes the family Tyrannosauridae as well as more basal relatives. Tyrannosauroids lived on the Laurasian supercontinent beginning in the Jurassic Period.
4 giorni fa · A Tinier Tyrannosaur: Researchers are trying to remake the case that fossils known as Nanotyrannus were their own species, rather than a teenage Tyrannosaurus rex.
4 giorni fa · Two young brothers and their cousin were wandering through a fossil-rich stretch of the North Dakota badlands when they made a discovery that left them “completely speechless”: a T. rex bone poking out of the ground.
4 giorni fa · A team at the Denver Museum of Nature & Science is working to fully reveal a rare Tyrannosaurus rex fossil discovered in the North Dakota badlands nearly two years ago.
3 giorni fa · Two young brothers and their cousin were wandering through a fossil-rich stretch of the North Dakota badlands when they made a discovery that left them “completely speechless”: a T. rex bone poking out of the ground.
1 giorno fa · Extinction is the termination of a taxon by the death of its last member. A taxon may become functionally extinct before the death of its last member if it loses the capacity to reproduce and recover. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively.
4 giorni fa · A rare fossil of an adolescent Tyrannosaurus rex has been excavated in North Dakota after it was discovered by three children while they were out walking. The discovery of the fossil, nicknamed...
