Dinosaurs in LBT generally have names related to their species name or to their appearance or even behavior. Not always true, but this is usually the norm. For example:
Cera=comes from Triceratops
Doc=comes from Diplodocus
Ducky=comes from the fact that she's a "duckbill" dinosaur
Pterano=comes from Pteranodon
Spike=comes from "spiketail"
Bron=comes from Brontosaurus
Chomper=comes from his chomping habits
Ruby=comes from the color of her skin
We usually don't see a dinosaur with more than one named assigned to them. And the only titles that have been assigned to dinosaurs, far as I know, is "mr" and "mrs", though maybe "ms" has been used. Dr has never been used in any LBT movies far as I know. I doubt they even have doctors in the LBT world.
Here are names for some of the dinosaurs you listed that would feel more LBT-like:
Montanoceratops: Tano
Amargasaurus: Marg
Protoceratops: Proto
Monoclonius: Cloni
Each of the names is derived from the species' name. But as I said earlier, the names could be derived other ways, like if the Armagasaurus were bright red in color, perhaps the name could be Rose or Crimson.