Long ago, dinosaurs roamed the earth! How many can you name?"
- Dinosaurs are a group of reptiles that have lived on Earth for about 245 million years.
- The word "dinosaur" was originally coined by a British paleontologist named Richard Owen in 1842, and came from the Greek word dienos, meaning "fearfully great," and sauros, meaning "lizard."
- Dinosaur remains were first discovered in North America on the upper Missouri River in 1854 by American geologist Ferdinand Vandiveer Hayden. Dinosaur fossils have been found on all seven continents, even Antarctica.
- There are thousands of different types of dinosaur species that have been found worldwide, and paleontologists classify the different types into two orders — Saurischia (lizard-like hips) or Ornithischia (bird-like hips). Learn more about the different types of dinosaurs.
- Paleontologists are like detectives who examine the evidence that extinct animals left behind, and these clues are found in fossils — the ancient remains of an organism.
- The enormous Seismosaurus, whose name means earthquake reptile, is believed to be the biggest dinosaur. Measuring about 150 feet long from head to tail, the Seismosaurus was as big as half of a football field! Learn more.
- The dinosaur with the longest name is the 23-letter Micropachycephalosaurus, meaning small thick-headed reptile. This dino's remains were found in China.
- Herbivorous (plant-eating) dinosaurs often traveled in herds for safety from potential predators. They also had natural weapons to help them fight off predators, such as spikes on their tails and horns on their heads.
- Scientists now believe that the Spinosaurus was the largest carnivorous (meat-eating) dinosaur to exist, measuring somewhere between 41 and 59 ft long and weighing up to 23 tons!
- The Stegosaurus was a large herbivore dinosaur with plates along its spine; however, scientists have determined that the plates actually rose out of the dinosaur's skin and were not attached to the its skeletal frame. The Stegosaurus may have been one of the largest dinosaurs to walk the Earth, but their brains were only about the size of a modern dog's brain!
- Pterodactyls are actually not dinosaurs, but flying reptiles that lived during the age of the dinosaurs.
- "Tyrannosaurus" comes from the Greek words meaning "tyrant lizard", while the word "rex" means "king" in Latin. Better known as the "T-Rex", the Tyrannosaurus Rex lived in an area of the Earth that now makes up western North America. The largest tooth of any carnivorous dinosaur found to this date is that a T-Rex, measuring approximately 12 inches long. Learn more about the famous T-Rex.
- The extinction of the dinosaurs occurred between 65 and 66 million years ago. Learn more about the extinction event.
- Scientists believe that the event leading to the extinction may have been a massive asteroid impact or huge volcanic activity. Events such as these could have blocked out sunlight and significantly changed the Earth's ecology.
Do you enjoy learning about our dinosaurs? You may just grow up to be a Paleontologist one day, using a wide range of sciences to study organisms!
Making every effort to encourage analog play among children, Jaq Jaq Bird continues to expand upon our mission of unplugged creativity through a brand collaboration with the Hello, World! book series, written and illustrated by Jill McDonald. Hello, World! teaches young children about STEM by exploring different aspects of natural science, including dinosaurs, our solar system, backyard bugs and ocean life. Shop the Jaq Jaq Bird x Hello, World! Collection or further explore the Hello, World! Book Series!