Achelousaurus (uh-KEE-loh-SAWR-us; “Achelous’ lizard”) is a genus of centrosaurine ceratopsian dinosaur that lived during the Late Cretaceous period, approximately 74.2 million years ago (late Campanian stage), in what is now Montana, North America. The name refers to the Greek mythological figure Achelous, a river god who could change his shape and had one of his […]
Achillesaurus (Uh-KILL-ee-SAWR-us; “Achilles’ lizard”) is a genus of alvarezsaurid theropod dinosaur that lived during the Late Cretaceous period (Santonian stage), approximately 86.3 to 83.6 million years ago. Its fossils were discovered in the Bajo de la Carpa Formation in RÃo Negro Province, Argentina. The name Achillesaurus refers to the dinosaur’s well-developed heel bone, which suggests
Achillobator (/uh-KILL-oh-BAY-tor/; “Achilles hero” or “Achilles warrior”) is a genus of large dromaeosaurid theropod dinosaur that lived during the Late Cretaceous period, approximately 96 to 89 million years ago, in what is now Mongolia. The name refers to the powerful Achilles tendon that would have attached to its heel, hinting at its strong leg muscles,
