First of congrats on beating the challenge!
I wanted to reply in regard to the cohabitation thing: IIRC it isn't based on where the animals lived, but rather whether or not they'd share the same food sources and therefore compete for resources in their territories.
It kinda makes sense but I also don't like the approach very much, since for many of them it would make sense to form larger herds for protection instead. So thankfully there are mods and you can turn it off in sandbox.
When I made that park in the challenge mode, I loathed myself for lacking the attention to detail.
Honestly, it would be authentic to put herbivores together according to the same timeline and same place of fossil discovery. I am not buying this competition notion. The competition notion is applicable in the case between abelisaurs and tyrannosaurs,
BUT NOT THE HERBIVORES.
The common dig sites of Apatosaurus, Camarasaurus, and Brachiosaurus are Como Bluff in Wyoming and the central Morrison Formation in Colorado. Apatosaurus and Camarasaurus still dislike each other even though they both like Brachiosaurus.
As for Torosaurus and Triceratops; they should like each other due to the common dig sites include the entire Hell Creek Formation (covering Montana, North and South Dakota), Lance Formation in Wyoming, Laramie Formation in Colorado, Frenchman Formation in Saskatchewan, and Scollard Formation in Alberta.
I never find these dislikes relationships make sense, and it is
DISGUSTINGLY APPALLING.
If those amendments were made, I would have included Apatosaurus and Torosaurus earlier in the Canada challenge.
I will not ask for stegosaurs and ankylosaurs due to their different places of fossil discoveries.
I am willing to accept having Pentaceratops disliking Pachyrhinosaurus, Styracosaurus, and Triceratops due to different places of fossil discovery.
I have come to terms that pachycephalosaurs and stegosaurs to dislike each other due to different timelines. Same logic behind the stegosaurs and ceratopsians disliking each other. If you tried
The Lost World: Jurassic Park Chaos Island, you would see Stegosaurus getting into fights with Pachycephalosaurus and Triceratops.
Nasutoceratops should dislike Styracosaurus because of not just the different places of fossil discovery, but also the fact that the Styracosaurus in the movie lore was subjected to an unknown form of cruelty. Therefore, we only see Nasutoceratops in the movies, not Styracosaurus. Thus, Styracosaurus is more of a Jurassic Park exclusive.
The "All Likes" sandbox element is only applicable for an all-carnivores and all-herbivores parks,
BUT NOT THE CLASSICALS,
NOT THE ULTIMATES. Surely, people would like a mixture of carnivores and herbivores in their parks. Still, herbivores and carnivores to be kept separately.