| change source] 1. ↑ ^1.0 ^1.1 "bicameral". The Free EncyclopediaSearch[ ]Search[ ] Appearance • Give to Wikipedia • Create account • Log inPages for logged out editors learn more • Contributions • TalkContentsmove to sidebar hideGetting around • Main page • Simple start • Simple start • Simple talk • New changes • Show any page • Simple start • Simple talk • New changes • Upload file • Special pages • Permanent link • Page information • Cite this page • Simple start • Simple talk • New changes • Show any page • Get shortened URL • Download as PDF • Page for printingIn other projects • Wikimedia Commons • Wikidata itemAppearancemove to sidebar hide • Beginning • 1 Fauna • 2 References[ ] Toggle the table of contentsCervières, Hautes-Alpes[ ] 40 languages • العربية • Asturianu • Azərbaycanca • تۆرکجه • Беларуская • Čeština • Dansk • Deutsch • English • Read • Change source • View history[ ] ToolsToolsmove to sidebar hideGetting around • Main page • Help • Contact us • About You NowExtended plays • Late (443.8–458.4 mya) Ordovician (443.8–485.4 Middle (458.4–470.0 mya) mya) Cisuralian (272.3–298.9 mya) • Early (470.0–485.4 mya) Furongian (485.4–497 mya) • Mississippian