Today, I’ll show you one of the coolest mounts of a theropod I have ever seen. The poor guy has been left hanging in the air a bit (and now I expect most of you already know what’s below the fold).
Obviously, Deinonychus antirrhopus in the AMNH.
It is very refreshing to see a non-running theropod, for once.
dinosaurpalaeo 
Along with the air-borne Deinonychus the display at AMNH includes casts of Archaeopteryx — some images of it in flight can be seen in the background in your photos.
As a “fossil explainer” at AMNH this display provides a great jumping-off point for discussing with museum visitors that some therapods evolved into birds.
Oh but what a case of bunny-hands…!!!
It’s not as bad as it looks, because the humeri are somewhat abducted. Try for yourself: if you place your hands with palms medially, then abduct the entire arm, soon your palm faces the ground.
And this was, after all, done in the bad old days 😉