Species X Avian Rex [Edit] [Talk] An Avian Rex is an enemy monster found in 65,000,000 B.C. in Chrono Trigger. History Forward to the Past Crono and his party encounter Avian Rexes while traveling through the Dactyl Nest in 65,000,000 B.C. Unnatural Selection? They encounter them again in the Tyrano Lair. Retrieved from "https://nintendo.fandom.com/wiki/Avian_Rex?oldid=525214" Categories: Species articles Pages needing a quote Class X articles Chrono Trigger Chrono Trigger enemies 65,000,000 B.C. Community content is available under CC-BY-SA unless otherwise noted.