**Aeolosaurus: The Lizard of the Winds** Aeolosaurus is a type of dinosaur that lived during the Late Cretaceous period, about 83 to 66 million years ago. This dinosaur roamed in what is now South America. **What Kind of Dinosaur Was Aeolosaurus?** Aeolosaurus was a large, long-necked dinosaur known as a sauropod. It walked on four …

Aegyptosaurus is a type of dinosaur known as a sauropod. It lived in what is now Africa around 95 million years ago during the Late Cretaceous Period. The name Aegyptosaurus means “Egypt’s lizard.” This dinosaur was discovered in Egypt, particularly in a place called the Bahariya Formation. The first fossils were found between 1910 and …

**Adynomosaurus: A Unique Dinosaur from Spain** Adynomosaurus is a type of dinosaur that lived during the Late Cretaceous period, about 70 million years ago. It was discovered in Catalonia, Spain, and is known from limited fossil remains. The only species in this genus is called Adynomosaurus arcanus. The name “Adynomosaurus” comes from Greek words meaning …

Adratiklit is an extinct type of dinosaur that belonged to the group known as stegosaurs. This dinosaur lived during the Middle Jurassic period, around 168 to 164 million years ago, on the supercontinent Gondwana, which is mainly what we now call southern continents. The name Adratiklit means “mountain lizard” in the Berber language. It includes …

**Adeopapposaurus** Adeopapposaurus is a type of dinosaur that lived during the Early Jurassic period, which was around 200 to 183 million years ago. This dinosaur is known from fossils found in Argentina, specifically in the Cañón del Colorado Formation. The name “Adeopapposaurus” means “far eating lizard,” which refers to its long neck. It was similar …

Adelolophus is a type of dinosaur that lived during the Late Cretaceous period, about 78 million years ago. This dinosaur is part of a group called Hadrosauridae, often known as duck-billed dinosaurs. Adelolophus is specifically classified under a subfamily known as Lambeosaurinae, which includes dinosaurs that had unique crests on their heads. The name Adelolophus …

Adasaurus is an extinct type of dinosaur that lived in Asia during the Late Cretaceous period, about 70 million years ago. The name Adasaurus means “evil lizard” in a mix of Mongolian and Greek languages. Adasaurus belonged to a family of dinosaurs called Dromaeosauridae, which are relatives of modern birds. This dinosaur was discovered in …

Adamantisaurus is an extinct type of dinosaur that lived during the Late Cretaceous period, around 75 million years ago. This dinosaur was found in what is now Brazil and is known from just a few fossilized tail bones. Being a sauropod, we can imagine it as a large dinosaur with a long neck and a …

**Actiosaurus: The Coast Lizard** Actiosaurus is a name that means “coast lizard.” It is an extinct type of reptile that lived during the Late Triassic period, around 210 million years ago. This reptile was first described by a scientist named Henri Sauvage in 1883, based on fossils found in France. **What We Know About Actiosaurus** …

**Acrotholus: An Overview of a Unique Dinosaur** Acrotholus is a fascinating type of dinosaur that lived during the Late Cretaceous period, around 84 to 83.5 million years ago. It was discovered in Canada, specifically in the Milk River Formation, which is known for uncovering many interesting fossils. The name “Acrotholus” comes from Greek words that …