Amurosaurus Riabinini, named after a famous Russian paleontologist, is the only one of its species. It has only been found in Blago and is believed to be about 68 million years old. A river moved the bones a short way and deposited them in the bonebed along with bones from other dinosaurs. The bones are mostly from juveniles and show scoring from the teeth of predators and scavengers. The deposit is so rich that the Amurosaurus is considered the most completely known dinosaur in Russia.
Yuri Bolotsky and Sergei Kurzanov found the example in 1991. The Amurosaurus is duck-billed herbivore. The Dinosaur Cemetery has been closed and work stopped due to a lack of funding though it is considered a national treasure and has a guard on duty.
Get your Adventures on the Amur: The Treasure of Nikolai Nikolaevich
Sources: https://www.rbth.com/articles/2012/04/09/new_infrastructure_to_pull_china_into_russia_15279.html
https://www.rusuphotography.com/Russia-Redux/Amur-China/i-bGmKKPX
https://www.rt.com/news/dinosaur-bonanza-far-east/
https://en.wikipedia.org/wiki/Amurosaurus
http://www.prehistoric-wildlife.com/species/a/amurosaurus.html