pedopenna

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Pedopenna.
This was a small, carnivorous paravian (and related to maniraptors such as Velociraptor and Therizinosaurus) that seems to have posessed wings on all four of its limbs. Its feathers weren’t as advanced as those of the similar Archaeopteryx, being more flexible and not as strongly adapted for flight. There is some debate over whether Pedopenna was related more closely to the deinonychosaurs, or modern birds.

It also possessed a specialised killing claw, like its deinonychosaur relatives, though the claws that Pedopenna had were far more primitive. And unlike the deinonychosaurs (and most modern birds) its flight feathers were all symmetrical (the restoration doesn’t show this), which means it would probably have been early in the evolution towards effective powered flight, or in the process of “devolving” these structures to the function of display.

(The fossil is of a Microraptor, but it is almost identical in appearance to Pedopenna, as far as observations have supposed. Only the hind leg of Pedopenna is physically known.)

Pedopenna daohugouensis

Source: http://dinosaurpictures.org/Pedopenna-pictures

Name: Pedopenna daohugouensis

Name Meaning: Foot Feater

First Described: 2005

Described By: Xu & Zhang

ClassificationDinosauria, Saurischia, Eusaurischia, Theropoda, Neotheropoda, Averostra, Tetanurae, Orionides, Avetheropoda, Coelurosauria, Tyrannoraptora, Maniraptoriformes, Maniraptora, Pennaraptora, Paraves, Eumaniraptora, Averaptora, Avialae

Pedopenna is another small, feathered dinosaur whose classification is questionable. It was found in the Daohugou Beds in China, about 164 million years ago in the Callovian age of the Middle Jurassic. It had large pennaceous feathers on its legs, and it has been classified both as a paravian (so a dromaeosaur, troodontid or avialan) or just an avialan. It was probably about 1 meter long, but it is only know from its hind legs, and thus true estimation is difficult. It had shorter feathers overlying the long foot feathers, showing the presence of coverts like in modern birds. It had fewer aerodynamic adaptations and they were less stiff, so whatever aerodynamic properties it had were weaker than in Microraptor. They could have been ornamental. 

Source:

https://en.wikipedia.org/wiki/Pedopenna

Shout out goes to karladon!