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Cambrian

If you find our videos helpful you can support us by buying something from amazon. https://www.amazon.com/?tag=wiki-audi... Cambrian Key events in the Cambrian view • discuss • edit -550 — – -540 — – -530 — – -520 — – -510 — – -500 — – -490 — – N e o p r o t e r o z o i c P a l e o z o i c Ediacaran C a m b r i a n Ordovician T e r r e n e u v i a n S e r i e s 2 S e r i e s 3 F u r o n g i a n Fortunian "Stage 2" "Stage 3" "Stage 4" "Stage 5" Drumian Guzhangian Paibian Jiangshanian "Stage 10"         * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Baykonur glaciation Baykonur glaciation * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ← Orsten Fauna ← Burgess Shale ← Kaili biota ← Archaeocyatha extinction ← Emu Bay Shale ← Sirius Passet biota ← Chengjiang biota ← First Trilobites ← SSF diversification, first brachiopods & archaeocyatha ← First halkieriids, mollusсs, hyoliths SSF ← Treptichnus pedum trace Large negative peak δ 13Ccarb excursion ← First Cloudina & Namacalathus mineral tubular fossils Stratigraphic scale of the ICS subdivisions and Precambrian/Cambrian boundary.The Cambrian (/ˈkæmbriən/ or /ˈkeɪmbriən/) is the first geological period of the Paleozoic Era, lasting from 541 to 485.4 million years ago (mya) and is succeeded by the Ordovician. =======Image-Copyright-Info======== License: Creative Commons Attribution-Share Alike 3.0 (CC BY-SA 3.0) LicenseLink: http://creativecommons.org/licenses/b... Author: Qfl247 Link: //en.wikipedia.org/wiki/User:Qfl247 Author-Info: Qfl247 (talk) (Transferred by Citypeek/Original uploaded by Qfl247) Image Source: https://en.wikipedia.org/wiki/File:Ar... =======Image-Copyright-Info======== -Video is targeted to blind users Attribution: Article text available under CC-BY-SA image source in video    • Cambrian