Austrocheirus is a type of dinosaur that lived a long time ago, during the Late Cretaceous period, around 76 to 70 million years ago. The name “Austrocheirus” means “southern hand,” and it was named in 2010 by scientists Martin Ezcurra, Federico Agnolin, and Fernando Novas. The specific name, “A. isasii,” honors a discoverer named Marcelo …

**Australovenator: The Southern Hunter** Australovenator, which means “southern hunter,” is a type of dinosaur that lived during the Late Cretaceous period in Australia, around 95 million years ago. This dinosaur is part of the theropod group, which includes many carnivorous dinosaurs. Its remains were discovered in an area known as the Winton Formation, and the …

**Australotitan: A Huge Dinosaur from Australia** Australotitan is an extinct group of giant dinosaurs known as sauropods. They lived during the Late Cretaceous period, about 100 million years ago, in what is now Queensland, Australia. The name Australotitan means “southern titan.” The first part, “australis,” is Latin for “southern,” referring to its discovery in Australia. …

**Australodocus: A Dinosaur from the Past** Australodocus is a type of dinosaur that lived during the Late Jurassic period around 150 million years ago. It roamed what is now Lindi Region in Tanzania. The name “Australodocus” means “southern beam,” and it was known for its long neck, which was quite different from some of its …

**Aurornis: An Early Dinosaur** Aurornis is an extinct type of dinosaur that lived during the Late Jurassic period, about 160 million years ago. It was discovered in China and is known from a single species called Aurornis xui. Scientists believe that Aurornis xui was one of the earliest members of the bird family tree. It …

**Auroraceratops: The Dawn Horned Face** Auroraceratops means “dawn horned face.” It is a genus of dinosaurs that lived during the Early Cretaceous period, specifically in a time called the Albian. This dinosaur was found in northern China. **Discovery** The first fossil discoveries in this area began in the 1930s with the Sino-Swedish Expedition. Over the …

**Augustynolophus: An Extinct Dinosaur** Augustynolophus is a type of dinosaur that lived a long time ago, during the Late Cretaceous period, around 70 to 66 million years ago. **What Kind of Dinosaur Was Augustynolophus?** This dinosaur was a herbivore, which means it ate plants. It belonged to a family called Hadrosauridae, also known as “duck-billed …

Augustia is a type of small beetle that lives in caves. This beetle belongs to a larger family of insects called Leiodidae. It is part of a subgroup known as Bathysciina, which includes many other cave-dwelling beetles. The first known September of Augustia is a species called Augustia weiratheri. It was discovered in a cave …

Aucasaurus is a type of dinosaur that existed in Argentina around 85 to 80 million years ago during the Late Cretaceous period. This dinosaur belongs to a family called Abelisauridae, which includes other carnivorous dinosaurs. Aucasaurus is considered medium-sized, measuring about 18 to 20 feet long and weighing around 1,500 pounds. Interestingly, Aucasaurus had very …

Aublysodon is a group of dinosaurs that lived around 75 million years ago during the late Cretaceous period. It is known mostly from a single type of tooth, which was found in Montana, USA. The name Aublysodon means “backwards-flowing tooth.” The only recognized species is Aublysodon mirandus, named by a scientist named Joseph Leidy in …