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

Type of: aeon, eon

Encyclopedia: Phanerozoic

• Erewhon
• erg
• ergo
• ergocalciferol
• ergodic
• ergodicity
• ergometer
• ergonomic
• ergonomically
• ergonomics
• ergonovine
• ergosterol
• ergot
• ergotamine
• ergotic
• ergotism
• Ergotrate Maleate
• ergotropic
• ergotropism
• Ergun He
• Erianthus
• Erianthus ravennae
• Eric Arthur Blair
• Eric Blair
• erica