Anserimimus: Profile of the Goose-Mimic Dinosaur Anserimimus Anserimimus (AN-suh-rih-MY-mus; “Goose mimic”) Anserimimus is a type of ornithomimid theropod dinosaur that roamed the Earth during the Late Cretaceous period, about 70 million years ago. Its fossilized bones were found in what is now Mongolia, specifically in an area called the Nemegt Formation. The name Anserimimus was […]
Antarctopelta: Profile of a Prehistoric Giant Antarctopelta Antarctopelta (ann-TARK-toe-PELL-tah; “Antarctic shield”) Antarctopelta is a genus of armored ankylosaurian dinosaur that lived during the Late Cretaceous period, approximately 74 to 70 million years ago, in what is now James Ross Island, Antarctica. The name Antarctopelta combines “Antarctos” (for Antarctica) and the Greek word “pelte” (shield), referring
Antarctosaurus Antarctosaurus (an-TARK-toh-SAWR-us; “Southern Lizard”) is a genus of titanosaurian sauropod dinosaur that lived during the Late Cretaceous period, approximately 83 to 70 million years ago. Its fossils have been found primarily in South America, particularly Argentina, with some other remains from areas like India also having been historically assigned to this genus. The name
Antetonitrus: Profile of a Prehistoric Giant Antetonitrus Antetonitrus (AN-teh-toh-NYE-trus; “before thunder”) is a genus of early sauropod dinosaur that lived during the Late Triassic period, around 210 to 200 million years ago. Its fossils were discovered in what is now South Africa. The name Antetonitrus means “before thunder,” referencing the famous sauropod Brontosaurus (“thunder lizard”)
Anzu: Profile of a Crested Oviraptorosaurian Anzu Anzu (AN-zoo; “Anzû,” a feathered demon in Mesopotamian mythology) is a genus of large oviraptorosaurian dinosaur that lived during the Late Cretaceous period, about 66 million years ago, in what is now North America. Fossils of Anzu have been found in the Hell Creek Formation in North and
Aoniraptor: Profile of a Prehistoric Giant Aoniraptor Aoniraptor (ah-OH-nee-RAP-tor; “Aonikenk plunderer”) is a genus of megaraptoran theropod dinosaur that lived during the Late Cretaceous period (late Cenomanian to early Turonian stages, approximately 95 to 93 million years ago). Its fossils were discovered in what is now Patagonia, Argentina, specifically in the RÃo Negro Province. The
Aorun: The Small ‘Dragon King’ of the Late Jurassic Aorun Aorun (AY-oh-run; “Dragon King of the West”) is a genus of small coelurosaurian theropod dinosaur that lived during the Late Jurassic period, about 161.6 million years ago. Fossils of Aorun were discovered in the Shishugou Formation in Xinjiang, China. The name “Aorun” comes from Mandarin
Apatosaurus – Dinosaur Encyclopedia Apatosaurus Apatosaurus (ah-PAT-uh-SAWR-us; “Deceptive Lizard”) Apatosaurus is a genus of giant herbivorous sauropod dinosaur that lived during the Late Jurassic period, about 152 to 151 million years ago, in what is now North America. Its name comes from the Greek words “apatelos” (deceptive) and “sauros” (lizard), given by paleontologist Othniel Charles
Appalachiosaurus: Profile of a Prehistoric Giant Appalachiosaurus Appalachiosaurus (AP-uh-LATCH-ee-oh-SAWR-us; “Appalachian lizard”) is a genus of tyrannosauroid theropod dinosaur that lived during the Late Cretaceous period, about 77 million years ago. Its fossils were discovered in what is now Alabama, in the eastern part of North America. The name refers to the ancient Appalachian mountain region
Aquilops: Profile of the Eagle-Faced Dinosaur Aquilops Aquilops (uh-KWIL-ops; “eagle face”) is a genus of early neoceratopsian dinosaur that lived during the Early Cretaceous period, approximately 108 to 104 million years ago (Albian stage). Its fossils were discovered in Montana, USA, in North America. The name Aquilops refers to the distinctive shape of its beak,
