Fanerozoico - Paleozoico -Ordoviciano

The Ordovician is the period of "organized life." Many phyla and classes still present on Earth today emerge and evolve, such as echinoderms, vertebrates, arthropods, cnidarians, and bryozoans. Dry land is conquered, and the planet begins to resemble the one we live on. But mass extinction will ruin everything! 1:30 Gondwana 4:50 Conquest of the Earth's Lands 6:40 Cnidarians 7:08 Bryozoans 7:17 Echinoderms 8:13 Mollusks 10:25 Trilobites 11:34 Fish 👇 Learn more 👇 https://it.wikipedia.org/wiki/Ordovician https://it.wikipedia.org/wiki/Trilobita https://it.wikipedia.org/wiki/Endoceras https://it.wikipedia.org/wiki/Cameroc... 👍 Follow me on social media! 👍 Blog ►https://bit.ly/2vysRlw Amazon ►https://amzn.to/2BuD9c6 Newsletter ►https://bit.ly/2vvupN5 Goodreads ►https://bit.ly/2waUVLx Facebook ►https://bit.ly/2vqKzHN Pinterest ►https://bit.ly/2vvAf1b Twitter ►https://bit.ly/2OofjjH Telegram ►https://bit.ly/2AYLRiw Quora ►https://bit.ly/2MFS3k8 Instagram ►https://bit.ly/profmeridda TikTok ►https://bit.ly/tiktokmeridda