**Alamosaurus: The Giant Dinosaur** Alamosaurus is a large dinosaur that lived during the Late Cretaceous period, around 70 to 66 million years ago. It was a huge herbivore that roamed what is now the southwestern part of North America. **Size and Features** Alamosaurus was a massive dinosaur. It could grow up to 26 meters long, …

**Akainacephalus: The Thorn-Headed Dinosaur** Akainacephalus is a type of dinosaur known as an ankylosaurid that lived about 76 million years ago during the Late Cretaceous period. This dinosaur was found in what is now southern Utah, specifically in the Horse Mountain Gryposaur Quarry of the Kaiparowits Formation. The name “Akainacephalus” comes from Greek words meaning …

Ajnabia is a group of dinosaurs called hadrosaurs that lived during the Late Cretaceous period, around 68 to 66 million years ago. The name Ajnabia means “stranger” or “foreigner.” It is considered special because it is the first confirmed hadrosaur found in Africa. Researchers believe it is linked to other hadrosaurs, like Adynomosaurus found in …

Ajkaceratops is a type of dinosaur that lived around 85 million years ago during the Late Cretaceous period. It was discovered in Europe, specifically in a place known as the western Tethyan archipelago. The name Ajkaceratops comes from the town of Ajka in Hungary, where fossils were found, and “ceratops” means “horned face” in Greek. …

Heyuannia is a type of dinosaur that lived during the Late Cretaceous period, about 70 to 66 million years ago. This dinosaur was found mainly in what is now China and Mongolia. **Naming and Discovery** Heyuannia is named after the city of Heyuan in China. The first species discovered, named Heyuannia huangi, was described by …

Ahvaytum is an extinct dinosaur that lived during the Late Triassic period, about 230 million years ago. It belongs to a group of dinosaurs known as sauropodomorphs, which are the early relatives of the long-necked giants we often think about when we picture dinosaurs. Only one species is known from this genus, called Ahvaytum bahndooiveche. …

**Ahshislepelta: A Unique Dinosaur Discovering Journey** Ahshislepelta is a fascinating dinosaur that lived around 74.5 million years ago during the Late Cretaceous period. This dinosaur was discovered in New Mexico, specifically from a place called the Kirtland Formation, which tells us a lot about the environment it lived in. **What Does Ahshislepelta Mean?** The name …

Agustinia is a genus of sauropod dinosaur that lived during the Early Cretaceous period, around 116 to 108 million years ago. This dinosaur was discovered in South America, specifically in the Neuquén Province of Argentina. The only known species of Agustinia is called Agustinia ligabuei. Its remains were found in the Lohan Cura Formation, which …

Agujaceratops is an extinct dinosaur that lived during the Late Cretaceous period, around 77 million years ago. The name “Agujaceratops” means “horned face from Aguja,” referring to where this dinosaur was discovered in west Texas. It belongs to a group of dinosaurs called ceratopsians, specifically the chasmosaurines, which are known for their large frills and …

Agrosaurus is a type of extinct reptile from a group called Thecodontosauridae. It lived during the late Triassic period, about 206 to 202 million years ago. The name Agrosaurus means “field lizard,” coming from Greek words. The first remains of Agrosaurus were claimed to be found in Australia, making it thought to be one of …