But this is where Ahvaytum may rewrite the origin story because it originates from the North American landmass, which once formed part of Laurasia. At roughly 230 million years old, it is comparable ...
Among the many fossilized stars is a 26-meter-long Mamenchisaurus jingyanensis, a gigantic herbivore that lived around 150 million years ago and had one of the longest necks of its species. It is ...