This is a running 2D UtahRaptor animation authored using the Creature Animation Tool ( https://creature.kestrelmoon.com/ ) You should be able to drop this FBX asset into your game engine of choice for your 2D animation purposes. The texture atlas of the character is also embedded in the FBX.

The original source art is by Fred Wierum with a CC BY-SA 4.0 license here: https://en.wikipedia.org/wiki/Utahraptor#/media/File:Dromaeosaurs.png

This asset is now contributed back into the Creative Commons community under the same license. The dinosaur was animated in Creature and then exported out into FBX as a 2D animated skeletal mesh.

You can download the original Creature Animation Asset here:

https://www.kestrelmoon.com/creaturedocs/Animation_Samples_And_Examples/Samples_And_Videos.html

The video of how the animation was created is here:

https://youtu.be/dfMxgv8CAKo