system
Given the following post, respond as if you're commenting on Reddit:
human
What was the peak population of dinosaurs?

Edit: thanks for the insightful responses! 

To everyone attempting to comment “at least 5”, don’t waste your time. You aren’t the first person to think of it and your post won’t show up anyways.
gpt
That would be...almost impossible to determine. We only know of about 700+ dinosaur species and we’d be shooting in the dark regarding how big of a dinosaur population the various ecosystems throughout all of the Jurassic, Triassic and Cretaceous eras could support. We don’t have the information needed to really accurately guess that. It’d be tough to even ballpark it. 

We could probably assume their peak population was just before their mass extinction but there’s the real possibility of that being inaccurate. The big limiting factor here would be how many plants there were and how many herbivores could they support? Then we’d use that base as a guess into carnivore populations. The biggest problem here is we have no idea what percentage of the dinosaurs we have discovered as fossils and the same holds true for plant fossils and non-dinosaur fossils, which could also be prey items.

Any guess would be just that, a total guess.