During which period did dinosaurs first appear?

Keep practicing — related questions

• In which one of the following geological periods did the first bird appear?
• Dinosaur became extinct in which period?
• Which of the following geological periods did dinosaurs NOT live in?
• Which of these time periods is called "the golden age of dinosaurs?"
• In which era did the first mammals appear on the earth?
• Dinosaurs became extinct in
• During which era did dinosaurs rule the Earth?
• The _____ period in the dinosaurs' reign was reached just before severe _____ conditions brought on the ice...