Archaeopteryx
Model by Ryosuke Sakurai.
Bird-like dinosaur model with open beak and pronounced eye.
There are two types of this model, a standing and a flying type. The flying type takes about 3 more minutes to fold.
Paper & size
This model ends up 11cm long and 7.5cm in height (standing type) and 11cm long and 8.5cm in height (flying type) when folded from a 17.5cm square.