I am thinking how cool it would be to introduce some of the largest and smallest dinosaurs in the game of each family except for sauropods. That way we could have a wide spectrum to choose from for diversity.
Eotriceratops
Eotriceratops would be a cool larger variant of the triceratops. She would fill that niche of a 5 star ceratopsid as she is very similar to the famous triceratops except for her size. Would be very powerful to house around.
Protocceratops (quadruped)
Although not the smallest ceratopsid, she is well known and is of a great size to fit the small niche for a quadruped ceratopsid in the parks. I would like to see her similar the sheep of the park, where she is small and defenseless to all carnivores currently in the game. I could see her as possibly be combat ready to the small carnivores, but I like the idea of them being defenseless more, to make the pachy's more unique as some of the few small herbivores to fight the small carnivores. I'll let frontier decide that.
psittacosaurus (bipedal)
The ceratopsids have a good number of bipedal small cousins. The psittacosaurus could be a great candidate to fill that niche as she is not as small as a microceratus and similar in size to the homalocephale. She would make for a cool small herbivore thanks to her colorful skins and her paleobotany of ceratopsids.
Minmi
A really small member of the ankylosarids, this dinosaur could be unique as an ankylosaur that is easily killable by large carnivores, but it immune or has to combat the small carnivores in the game. Her inclusion could be that of a less timid ankylosaur that could be in large populations, and would make for a much needed dinosaur from austrailia.
Nipponosaurus
Nipponosaurus is one of the fairly small hadrosaurs discovered. Despite not being the smallest, I think she would make a wonderful addition to be a dinosaur from japan. Which would be a nice touch as hammond was able to get his park kickstarted thanks to japanese investors, so this could be seen as a thanks and representation of japanese dinosaurs.
shantungosaurus
Being almost twice the size of edmontosaurus in depictions, this dinosaur will sure to be amazing as she is currently known as the largest non-sauropod creature to walk the earth, and a potential hadrosaur that requires to eat from the tall feeders.
Magyarosaurus
The nigersaurus has been recently added and is a wonderful inclusion. However, she is not the smallest sauropod that could be kept into the game. I think the Magyarosaurus would make for a wonderful small sauropod that is defenseless to all carnivores, and would make for a great exhibit mate to the nigersaurus.
I'll post again after work to see what the smallest and largest of the carnivores we could have in the game!