**Amygdalodon** Amygdalodon is an extinct type of dinosaur that lived during the Middle Jurassic period, around 180 to 172 million years ago. It is known from fossils found in Argentina. The name “Amygdalodon” means “almond tooth,” which comes from the shape of its teeth. **Fossils and Discovery** The remains of Amygdalodon were first discovered in …

**Amurosaurus: A Dinosaur from the Late Cretaceous Period** Amurosaurus is a type of dinosaur that lived during the Late Cretaceous period, around 70 to 66 million years ago. This dinosaur was found in eastern Asia, specifically near the Amur River, which borders Russia and China. **Discovery and Naming** Amurosaurus was first described by Russian paleontologists …

Amtosaurus is a type of dinosaur that lived a long time ago during the Late Cretaceous period, specifically around 70 to 100 million years ago. This dinosaur is part of the Ornithischia group, which means it was one of the plant-eating dinosaurs. The first fossils of Amtosaurus were discovered in Mongolia by a group called …

Amtocephale is a type of dinosaur that lived during the Late Cretaceous period, about 96 to 89 million years ago. It comes from the southern Gobi Desert in Mongolia. The name “Amtocephale” was first given by scientists Mahito Watabe, Khishigjaw Tsogtbaatar, and Robert Sullivan in 2011. The name combines “Amtgai,” the place it was discovered, …

**Anchisaurus: A Small Dinosaur from the Past** **Time Period** Anchisaurus lived during the Early Jurassic period, about 200 to 195 million years ago. Fossils of this dinosaur have been found in northeast United States, specifically in the Upper Portland Formation. **What is Anchisaurus?** Anchisaurus is a type of dinosaur known as a sauropodomorph. This term …

**Amphicoelias: A Giant Dinosaur** Amphicoelias is a type of dinosaur that lived around 150 million years ago during the Late Jurassic Period. It is most famously known for being a large herbivorous dinosaur, meaning it ate plants. The name “Amphicoelias” comes from Greek words meaning “hollow on both sides,” which describes the shape of its …

**Ampelosaurus: The Vine Lizard** Ampelosaurus is a genus of dinosaur that lived during the Late Cretaceous period, around 71.5 million years ago. Its name, which means “vine lizard,” was inspired by the vineyards located near where its fossils were found in southern France. **Description and Size** Like many dinosaurs in the sauropod family, Ampelosaurus had …

**Ampelognathus: A Late Cretaceous Dinosaur** Ampelognathus is an extinct dinosaur that lived during the Late Cretaceous period. It belongs to a group called ornithopods, which were known for being plant-eaters with unique jaw structures. The name “Ampelognathus” means “grapevine jaw,” reflecting its discovery location near Grapevine Lake in Texas. **Discovery and Naming** The remains of …

**Anchisaurus: A Small Jurassic Dinosaur** **Overview** Anchisaurus is a type of dinosaur that lived during the Early Jurassic period, around 200 to 195 million years ago. Its fossils have been found in red sandstone in the northeastern United States. The name Anchisaurus means “near lizard” in Greek, combining the words for “near” and “lizard.” It …

**Ambopteryx: A Unique Dinosaur from the Late Jurassic** Ambopteryx is a fascinating genus of dinosaurs that lived during the Late Jurassic period, approximately 163 million years ago. It was discovered in China and is notable for having both feathers and special wing-like structures similar to bat wings. **What is Ambopteryx?** The name Ambopteryx comes from …