Name of Dinosaurs: From Aardonyx to Zuniceratops, Learn About Every Dinosaur That Ever Lived
Name of Dinosaurs: A Guide to the Mesozoic Reptiles
Dinosaurs are a group of reptiles that lived on Earth for about 245 million years, from the late Triassic period to the end of the Cretaceous period. They were the dominant land animals during most of this time, and evolved into a variety of shapes and sizes. Some were as small as a chicken, while others were as big as a bus. Some were herbivores, while others were carnivores. Some had feathers, while others had scales. Some had horns, while others had spikes.
name of dinosaurs
Dinosaurs are classified into two major groups based on the structure of their hips. Saurischia means "lizard-hipped" and includes theropods (meat-eating dinosaurs) and sauropodomorphs (long-necked giants). Ornithischia means "bird-hipped" and includes thyreophorans (armored dinosaurs) and ornithopods (duck-billed and crested dinosaurs).
One of the main sources of information about dinosaurs is their fossils, which are the preserved remains or impressions of their bones, teeth, skin, or other parts. Fossils can tell us about their size, shape, diet, behavior, and evolution. Other sources include their tracks, which show how they moved and how fast they were; their eggs, which show how they reproduced and cared for their young; and their coprolites, which are fossilized feces that reveal what they ate.
Saurischia: The Lizard-Hipped Dinosaurs
Theropods: The Meat-Eating Dinosaurs
Theropods were bipedal dinosaurs that had sharp teeth and claws for hunting and eating other animals. They ranged from small and agile hunters like Velociraptor to large and powerful predators like Tyrannosaurus rex. Some theropods also had feathers, which may have been used for insulation, display, or flight.
Tyrannosaurus rex: The King of the Dinosaurs
Tyrannosaurus rex was one of the largest and most famous dinosaurs ever. It lived in North America during the late Cretaceous period, about 68 to 66 million years ago. It had a massive skull with powerful jaws and teeth that could crush bones. It had short arms with two fingers, and long legs with three toes. It could grow up to 12 meters long and weigh up to 8 tons. It was probably an apex predator, meaning that it had no natural enemies. It may have hunted alone or in pairs, and scavenged from dead animals as well.
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Velociraptor: The Speedy Thief
Velociraptor was a small and agile dinosaur that lived in Asia during the late Cretaceous period, about 75 to 71 million years ago. It had a long tail for balance, and a curved claw on each foot that it used to slash and stab its prey. It had a slender snout with sharp teeth, and a large brain for its size. It had feathers on its arms and tail, which may have helped it regulate its body temperature or communicate with other members of its species. It could grow up to 2 meters long and weigh up to 15 kilograms. It was probably a pack hunter, meaning that it cooperated with others of its kind to catch larger animals.
Spinosaurus: The Largest Carnivorous Dinosaur
Spinosaurus was a huge and unusual dinosaur that lived in Africa during the middle Cretaceous period, about 112 to 97 million years ago. It had a long and narrow snout with conical teeth for catching fish. It had a sail-like structure on its back, which was supported by tall spines on its vertebrae. The function of the sail is still debated, but it may have been used for thermoregulation, display, or identification. It had short hind legs and long forearms with claws for grabbing prey. It could grow up to 15 meters long and weigh up to 20 tons. It was probably a semi-aquatic dinosaur, meaning that it spent some time in the water and some time on land.
Sauropodomorpha: The Long-Necked Giants
Sauropods: The Long-Necked Giants
Sauropods were quadrupedal dinosaurs that had long necks and tails, small heads, and massive bodies. They were the largest land animals ever to exist, and some of them could reach over 30 meters in length and over 100 tons in weight. They were herbivores, meaning that they ate plants, and they had peg-like teeth for stripping leaves from branches. They had thick legs with five toes each, and some of them had claws or spikes for defense. They lived from the late Triassic period to the end of the Cretaceous period, and were found on every continent except Antarctica.
Brachiosaurus: The Giraffe of the Dinosaurs
Brachiosaurus was one of the tallest dinosaurs ever. It lived in North America during the late Jurassic period, about 154 to 153 million years ago. It had a long neck that could reach up to 9 meters high, and a short tail that balanced its body. It had a large head with nostrils on top of its skull, which may have helped it breathe better at high altitudes. It had longer forelegs than hind legs, which gave it a sloping posture. It could grow up to 25 meters long and weigh up to 56 tons. It was probably a browser, meaning that it ate leaves from the tops of trees.
Diplodocus: The Longest Dinosaur
Diplodocus was one of the longest dinosaurs ever. It lived in North America during the late Jurassic period, about 155 to 145 million years ago. It had a very long neck and tail, which together made up more than half of its body length. It had a small head with pencil-like teeth for nipping plants. It had four sturdy legs with hoof-like claws, and a whip-like tip on its tail that may have been used for defense or communication. It could grow up to 35 meters long and weigh up to 15 tons. It was probably a grazer, meaning that it ate low-growing plants.
Argentinosaurus: The Heaviest Dinosaur
Argentinosaurus was one of the heaviest dinosaurs ever. It lived in South America during the late Cretaceous period, about 97 to 94 million years ago. It had a massive body with thick bones and muscles. It had a relatively short neck and tail compared to other sauropods, but still very long by human standards. It had a small head with spoon-shaped teeth for cropping plants. It had column-like legs with five toes each , and a thick skin that may have protected it from predators. It could grow up to 40 meters long and weigh up to 100 tons. It was probably a generalist, meaning that it ate a variety of plants.
Ornithischia: The Bird-Hipped Dinosaurs
Thyreophora: The Armored Dinosaurs
Thyreophorans were quadrupedal dinosaurs that had bony plates, spikes, or clubs on their backs, sides, or tails. They were herbivores that used their armor for defense against predators. They lived from the early Jurassic period to the end of the Cretaceous period, and were found mostly in Europe, North America, and Asia.
Stegosaurus: The Spiked and Plated Dinosaur
Stegosaurus was one of the most recognizable dinosaurs ever. It lived in North America during the late Jurassic period, about 155 to 150 million years ago. It had a row of large plates along its back, and four spikes on its tail. The function of the plates is still uncertain, but they may have been used for thermoregulation, display, or identification. The spikes were probably used for defense against predators. It had a small head with a beak and cheek teeth for eating plants. It had short forelegs and long hind legs, and walked on all fours. It could grow up to 9 meters long and weigh up to 5 tons. It was probably a solitary or social animal, meaning that it lived alone or in groups.
Ankylosaurus: The Tank of the Dinosaurs
Ankylosaurus was one of the most heavily armored dinosaurs ever. It lived in North America during the late Cretaceous period, about 68 to 66 million years ago. It had a thick and bumpy skin that covered its entire body, except for its belly. It had large plates and knobs on its back and sides, and a club-like structure on its tail. The club was probably used for defense against predators or for fighting with other ankylosaurs. It had a small head with a horny beak and small teeth for eating plants. It had four short and stout legs, and walked on all fours. It could grow up to 10 met