Board Thread:Suggestions/@comment-25118285-20170113233624/@comment-26248987-20170428001425

mesothelay indminus rex yee dire bear and the almiety CREEPEROSAURUS REX and remove feahts they stink megalodon lives #jurrasicparkwasanisidejob

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The 'ideal' creature would hypothetically be a herbivorous, paleozoic, flying creature to fill in gaps that aren't already filled by the mod. I'm not sure if it's a herbivore, but Meganeura almost fits all of these, and has the bonus of being an Arthropod. It is also speculated to have aquatic larvae. It is already planned for the mod, but it would add a ton of diversity, so I'll show my support for the idea anyway.