This particular skeleton was discovered in Mongolia in late 1940's - early 1950's. At the time USSR had organized a number of paleontological expeditions into the region - with great success. One of the most famous paleontologists of the expeditions was Ivan Antonovich Efremov (photo below), although he is better known as a science fiction writer, depicting a bright, socialist future of peaceful space exploration.
This is the Paleontology Museum in Moscow. The current building (pictured here) was created in 1965, after Academician Yuri Orlov petitioned the government that the old building was becoming too cramped and unfit for the vast collection. The museum currently bears comrade's Orlov's name.
Their website: https://www.paleo.ru/museum/about/
More pictures inside.
An artist's rendition of an early human village, with some freshly-domesticated dogs at the forefront. At the back, a cave lion is hesistant to approach the strange place.
Sadly, I have lost any information on who the artist is, so if you know - please share.
This is an Olorotitan - a type of hadrosaur, found in what is now Amur oblast in Russia. At approximately 12 metres long it was one of the largest species of its family. It is also notable for some unique characteristics, such as having 18 vertebrae in the neck, instead of the usual 15. Some scientists consider this to be a hint at the potential evolution of the hadrosaurs, had they not gone extinct - a drift towards sauropod like adaptations.
