First of all, pterodactyls are not dinosaurs; they are pterosaurs, so not a good look for the writer (Henry Wentworth) on that front. Secondly, pterodactyls 2 is really, really not a good film, and its usage of poor music during every 'action' scene is not only tacky but bad. It basically ruins the moment.
Basically, Perodscty 2 is eighty minutes of poorly scripted lines, unrealistic conversations, mediocre acting by an unrecognisable cast, and scene failures one after another. They explain very little to the viewer.
One of the worse performances must have come from Jase Rivers, who played a man by the name of Robert Kilgore, who led, again, an unrealistic group of military personnel. Terrible.
My opinion to those. Considering this film; don't.