Placoderms of the Devonian Sea. скачать в хорошем качестве

Placoderms of the Devonian Sea.

Placoderms of the Devonian Sea (419 mya -358 mya) was a time of great change for life on the planet. The colonisation of land by plants gathered pace during the early part of the Devonian and by the end of the period great forests covered the land. Arthropods are thought to have been present on land margins by as early as the Cambrian period but now insects consolidated deep inland and then the vertebrate tetrapods emerged from the water margins to begin their colonisation of the land. The Devonian period is also known as the Age of Fishes as this was the time that fish became the dominant lifeform throughout the oceans of the world - and the most dominant fish group were the armoured placoderms. Paleozoo Evolutionary Models are detailed portraits of some of the earliest complex lifeforms to evolve on Earth. More information can be found at https://www.paleozoo.com.au Other Paleozoo videos:    • History of Earth - in brief