Which period of the Mesozoic Era came first?
The Triassic period was the first and oldest period of the Mesozoic Era.
What does the word "dinosaur" mean?
The word "dinosaur" comes from the Greek words "deinos" (terrible) and "sauros" (lizard).
Which of these dinosaurs was a flying reptile?
Pterodactyls were flying reptiles, not dinosaurs, that lived during the Mesozoic Era.
The asteroid that likely caused the extinction of the dinosaurs struck the Earth during which period?
The asteroid impact that likely caused the dinosaur extinction occurred at the end of the Cretaceous period.
Which of these dinosaurs was the largest land predator of all time?
Recent discoveries suggest that Spinosaurus was larger than Tyrannosaurus Rex and other large predatory dinosaurs
Stegosaurus had plates on its back made of what material?
Stegosaurus plates were made of bone, not cartilage, keratin, or chitin.
What type of dinosaur was Brachiosaurus?
Brachiosaurus was a sauropod, a type of dinosaur known for its long neck and tail.
Which of these dinosaurs had a long neck and tail, but walked on two legs?
Iguanodon was a unique dinosaur that walked on two legs but had a long neck and tail.
The first dinosaurs appeared during which geologic period?
The first dinosaurs appeared during the Triassic period, which preceded the Jurassic.
What was the primary diet of Triceratops?
Triceratops was an herbivore, primarily feeding on plants.
Which of these dinosaurs had the longest claws?
Therizinosaurus had the longest claws of any known dinosaur, measuring up to 3 feet (1 meter) long.
Dinosaurs are most closely related to which modern animal group?
Modern birds are the closest living relatives of dinosaurs.
What was the average lifespan of a Tyrannosaurus Rex?
Tyrannosaurus Rex had an estimated average lifespan of 20-30 years.
Which of these dinosaurs had a distinctive head crest?
Parasaurolophus had a distinctive, long, curved head crest.
The Mesozoic Era is also known as the "Age of ____."
The Mesozoic Era is known as the "Age of Dinosaurs" due to their dominance during this time.
What was the primary purpose of the Stegosaurus' plates?
Stegosaurus plates likely helped with body temperature regulation.
Which of these dinosaurs had the smallest brain relative to its body size?
Stegosaurus had the smallest brain relative to its body size among the options provided.
The Mesozoic Era lasted for approximately how long?
The Mesozoic Era lasted approximately 186 million years.
Which of these dinosaurs had a club-like tail?
Ankylosaurus had a distinctive club-like tail used for defense.
What was the primary reason for the dominance of dinosaurs during the Mesozoic Era?
A combination of factors, including lack of predators, a warm, stable climate, and abundant food sources, contributed to the dominance of dinosaurs during the Mesozoic Era.
