I was thinking of vintage 'Sargent Rock & Sargent Furry w/ Easy company' comic books with blue Panzer IV's battling T-Rex dinosaurs. 'Star Wars' borrowed a lot of 'Nazi' symbolism, weapons and style from the third Reich. Their 'heavy laser gun' looks a lot like the MG 42. The desert scenes include a Storm trooper mounted on a giant lizard similar to the above cartoon.
It think it would make for a excellent 'what if' diorama in a science fiction category in a model contest, if a vintage comic book could be found the cover would support the idea, like a back drop to the scene.
Maybe a 'Dinosaur vrs....' 2011 GB? the possibilities are endless!
Now I am on a roll remember the movie (early 80's) where a WWII German Mk VII submarine found a porthole in time to the age of Dinosaurs and fought them from the decks with various small arms? Bonus point for the name of said movie: