An article published in the journal PLOS ONE describes the discovery of a theropod dinosaur that was called Gualicho shinyae. It's been classified in the group of carnosaurs and what makes it particularly interesting is that its arms are small like those of the more famous Tyrannosaurus rex, classified in another group of theropods. This suggests that this feature evolved a number of times independently. Read the details in the article!
16.) Deinocheirus The Deinocheirus was the largest ornithomimosaurian (ostrich dinosaur) to ever exist. The bones were discovered in the Nemegt Formation of Mongolia in 1965. It measured 11 m (36 ft), with an estimated weight of 6.36 t (14,000 lb). Its claws are huge and were probably very useful for digging up food or scaring off attackers!