This 24 August 2018 video says about itself:
Stegosaur family species comparison
These stegosaur species differ in size and comparison so much that the smallest of them weighs less than one tonne and the largest weighs more than 15 tonnes. The smallest stegosaurid measures only 5-6 meters in length while the largest measures more than 12-14 meters in length. These stegosaur species all have one thing in common, the noticeable strong and elongated skull.
In this video of the stegosaur family species comparison, we shall take a more detailed look at 13 stegosaurids, their size, where and when they existed. Most of them are in China, so they’re Chinese dinosaurs.