1. The period from about 540 million years ago until the present
   - Phanerozoic, Phanerozoic eon

Type of: aeon, eon

• rocket propellent
• rocket propulsion
• rocket range
• rocket salad
• rocket science
• rocket scientist
• rocket-propelled
• rocketeer
• rocketry
• rockfall
• rockfish
• rockfoil
• Rockford
• Rockies
• rockiness
• rocking chair
• rocking horse
• Rockingham
• Rockingham podocarp
• rocklike
• rockling
• rockrose
• rockrose family
• rockslide
• rockweed