By the way, what is a non-LBT element? I know a few exist, like sex, excessive gore, excessive language, and the like, but what else is there?
Good question and one for which I doubt there is one correct answer as much of this would depend on the view of the individual. While you already named some elements which I daresay most would agree to be "non-LBT" there are many trickier things. For example I don't think that human ways of thinking can be transferred on dinosaurs just like that. For example one of the major sources of conflict in human societies, the principle of personal ownership and wealth of items does exist in LBT, but not to a degree similar to the degree we know in our world. There are examples of personal possession of items (e.g. Littlefoot first treestar, his laying claim to the one at the beginning of LBT 5 based on the fact that it was "his turn", Pterano's striving to own the stone of cold fire, Tria's pile of shining rocks... the list goes on) but still in most cases I see a difference to the human system of owning and accumulating stuff.
Another tricky question is about the degree of mechanical abilities which the dinosaurs have. In one of my stories I allowed Ozzy to be able to tie a noose out of a vine which he slung around Littlefoot's neck to prevent him from running away, but I considered that idea "borderline" so to speak and refrained from any ideas of Ducky (who was also captured by the eggeaters in that story) to be held in a similar way as I really thought that would drive the motoric abilities of the dinosaurs too far.
I will admit that I am very strict on such things so there are even scenes in actual land before time movies which would not have passed my personal "realism check" (examples would be the using of a volcanic spring for an elevator/lift in LBT 7 or a single Quetzalcoatlus' ability to carry Littlefoot, Cera, and Spike (not to mention the fact that they didn't seem to have any difficulties whatsoever to hold on to it)). One thing that has also given me a really hard time with regard to my story "Old Threehorns" is how the concept of leadership would be handled in LBT. Can a herd leader "order" anyone to do anything against his or her explicit will? And what would be the consequences if somebody didn't want to? I suppose there are different examples, but when trying to figure them out I think it is a good idea to avoid as much as possible to think in "human terms" but rather try to see it all from the point of view of a land before time dinosaur. Most of the time their motives are a lot less complex than our daily motives of acting are, but ironically their simpler structures of life seem to be a rather knotty puzzle to unreveal for us.