Montana Dinosaurs Quiz Updated: February 26, 2026 Take the Quiz 1) How tall and long was T. rex? 10 ft high, 20 ft long 20 ft high, 48 ft long 30 ft high, 60 ft long 2) About how long were T. rex's teeth? ~3 inches ~7 inches ~12 inches 3) In what year was a more complete T. rex skeleton found? 1880s 1902 1960s 4) Which dinosaur looked like a smaller T. rex and was about 30 ft long? Albertosaurus Avaceratops Troodon 5) What made Avaceratops different from Triceratops? It had three horns like Triceratops It had one short horn and a fan-like frill It had no horns 6) Which dinosaur had a large ripping claw on each foot and was found in Montana in the 1960s? Velociraptor Deinonychus Troodon 7) How long was Deinonychus? 5-7 ft 10-13 ft 20 ft 8) What trait of Deinonychus suggests some dinosaurs were warm‑blooded and fast? They had feathers Quick, active hunting behavior Lived only in cold climates 9) Which small animal lived at the same time as the last dinosaurs and survived extinction? Troodon Purgatorius Avaceratops 10) About how long was Purgatorius? ~9 inches ~3 feet ~6 feet 11) What did Purgatorius eat? Only plants Fruit, small animals, and insects Fish and meat 12) How many horns did Triceratops have? One Two Three 13) About how long was Triceratops? 15 ft 30 ft 45 ft 14) Which dinosaur was a small meat-eater with slashing claws, related to Velociraptor? Troodon Avaceratops Albertosaurus Submit Quiz Reset Updated: January 20, 2026