Aviatyrannis: Profile of an Early Tyrant Aviatyrannis Aviatyrannis (AY-vee-ah-tie-RAN-iss; “Grandmother Tyrant”) is a genus of tyrannosauroid theropod dinosaur that lived during the Late Jurassic period, approximately 155 to 150 million years ago. Its fossils were discovered in the Guimarota Formation of Portugal. The name refers to its status as one of the oldest known members […]
Avimimus Avimimus (AH-vee-MIME-us; “bird mimic”) is a genus of small, bird-like theropod dinosaur. It lived during the Late Cretaceous period, about 70 million years ago. Fossils of Avimimus have been found in what is now Mongolia, in the Gobi Desert. The name “Avimimus” means “bird mimic” because this dinosaur had many features similar to modern
Avipes: Profile of a Prehistoric Archosaur Avipes Avipes (AY-vih-peez; “bird foot”) is a genus of archosaur, possibly an early dinosaur or a close relative, that lived during the Middle Triassic period, around 242 to 237 million years ago. Its fossils were discovered in what is now Germany. The name Avipes comes from the Latin words
Avisaurus: Profile of a Late Cretaceous Bird Avisaurus Avisaurus (AH-vih-SAWR-us; “bird lizard”) is a genus of enantiornithine bird that lived during the Late Cretaceous period, approximately 70.6 to 66 million years ago, in what is now North America. The name comes from the Latin word “avis” meaning “bird” and the Greek word “sauros” meaning “lizard.”
