Speed: Very fast, 40 mph
Period: Late Cretaceous
Range: Alberta, Alaska, New Mexico, Texas
Length: 28-33 feet
Name meaning: Lizard from Alberta
Albertosaurus looked like a smaller more slender version of T. rex. It was lighter and more similar in size, speed and appearance to Daspletosaurus and slightly bigger than Gorgosaurus. It lived earlier than most of its big relatives but it possibly died out, got extinct the same time.