![Specialists assemble the bones of an Allosaurus skeleton on November 13, 2018 at the Artcurial auction house in Paris. (Photo/Agencies)](http://www.ecns.cn/hd/2018/11/14/f220345ad90b4ac7aee9f2f65e463648.jpg)
Specialists assemble the bones of an Allosaurus skeleton on November 13, 2018 at the Artcurial auction house in Paris. (Photo/Agencies)
![A dinosaur skeleton, an Allosaurus discovered in Wyoming, is reconstructed ahead of an auction at Artcurial auction house in Paris, France, November 13, 2018. (Photo/Agencies)](http://www.ecns.cn/hd/2018/11/14/7a29fc29fe3f4ef7b4a0b32c1b38473f.jpg)
A dinosaur skeleton, an Allosaurus discovered in Wyoming, is reconstructed ahead of an auction at Artcurial auction house in Paris, France, November 13, 2018. (Photo/Agencies)
![Two dinosaur skeletons, an Allosaurus and a Camptosaurus discovered in Wyoming, are reconstructed ahead of an auction at Artcurial auction house in Paris, France, November 13, 2018. (Photo/Agencies)](http://www.ecns.cn/hd/2018/11/14/4c516520b2c843acbf59a373161dbaa6.jpg)
Two dinosaur skeletons, an Allosaurus and a Camptosaurus discovered in Wyoming, are reconstructed ahead of an auction at Artcurial auction house in Paris, France, November 13, 2018. (Photo/Agencies)