Plesiosaurs, contemporaries of dinosaurs

After our earlier blog post on pliosaurs, now this video says about the order of plesiosaurs, the wider group to which pliosaurs belonged:

Plesiosaurs 101 | National Geographic

24 August 2018

While dinosaurs roamed the Earth, marine reptiles in the order Plesiosauria swam in our planet’s prehistoric oceans. Find out which creatures belonged in this group, how they grew to incredible sizes, and how they’ve captivated both scientists and storytellers alike.