Sinosauropteryx
"Sinosauropteryx" was a small bipedal theropod, noted for its short arms, large first finger (thumbs), and long tail. The taxon includes some of the smallest known adult non-avian theropod specimens, with the holotype specimen measuring only in length, including the tail. However, this individual was relatively young. The longest known specimen reaches up to in length, with an estimated weight of .
Gigantoraptor
In a quarry at Saihangaobi, in Sonid Left Banner (Inner Mongolia), numerous remains of the sauropod "Sonidosaurus" have been uncovered since 2001. Chinese paleontologist Xu Xing was asked to reenact the discovery of "Sonidosaurus" in April 2005 for a Japanese documentary. Xu obliged them by digging out a thighbone. As he wiped the bone clean, he suddenly realized it was not from a sauropod, but from an unidentified theropod in the size class of "Albertosaurus". He then stopped the filming to secure the serendipitous find. This way, the discovery of the "Gigantoraptor" holotype fossil was documented on film.