1. From 63 million to 2 million years ago
   - Tertiary

Type of: geological period, period

Part of: Age of Mammals, Cenozoic, Cenozoic era

Encyclopedia: Tertiary period

• double digit
• double dipper
• double dipping
• double door
• double dribble
• double Dutch
• double dye
• double eagle
• double entendre
• double entry
• double fault
• double feature
• double first
• double flat
• double glazing
• double Gloucester
• double gold
• double helix
• double indemnity
• double jeopardy
• double knit
• double leg circle
• double negative
• double obelisk
• double over