Wenupteryx uzi, a likely archaeopterodactyloid pterosaur, is a small species found in the Upper Jurassic Vaca Muerta Formation in Neuquén Province, Argentina. The discovery is based on an incomplete but associated skeleton, along with an isolated ulna. The name of the species combines the Mapuche words "wenu," signifying "sky," and "uzi," representing "fast."

It was a piscivore (fish-eater) by nature implicating that it probably lived by the shore - close to its food source, just like modern day seagulls.

The skeleton of Wenupteryx comprises several cervical and dorsal vertebrae, both shoulders, parts of the right wing and most of the left wing, sections of the hips, and the majority of the hindlimbs. The limb bones, including an elongated metacarpus, indicate that Wenupteryx belongs to the pterodactyloid group, which emerged during the Jurassic and dominated the skies of the Cretaceous with their short tails. The features of the cervical vertebrae also suggest connections to archaeopterodactyloids such as Pterodactylus and Ctenochasma.

Unlike birds, pterosaurs were quadrupeds, which allowed them to employ their flight muscles for movement on land. This unique adaptation enabled them to achieve rapid and powerful takeoffs without requiring a running start. As a result, some pterosaurs could attain significantly larger sizes and higher weights compared to birds. This distinction has led to speculation that their ability to use flight muscles for terrestrial locomotion played a crucial role in their evolution and size potential.