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Albertosaurus
Albertosaurus (al-BURR-to-SORE-us) is the species name for several species of tyrannosaurids that looked similar to Tyrannosaurus rex, but were rather smaller.Albertosaurus also tended to be less massive than T. rex, as fine as its contemporary Daspletosaurus (also a tyrannosaurid of similar length).
The
co-existence of these two animals have
lead to the proposal that they were specialized
for killing different kinds of prey: Albertosaurus
may have went after fleeter prey,
like duck-billed dinosaurs and ornithomimids,
while Daspletosaurus tackled heavier horned
dinosaur.
Like Tyrannosaurus,Albertosaurus had small arms and a enormous head with recurved serrated teeth. These teeth however, are more powerfully curved than those of Tyrannosaurus.
Unlike Tyrannosaurus, who underwent much evolutionary modify, all discovered specimens of Albertosaurus suggest that they didn't evolve much in over 10 million years, apart from for a trend towards a more slender or gracile form.
Albertosaurus is named after the Canadian province of Alberta.
