Everything about this mod is pretty awesome and I'm a big fan of it: I'm sort of being overly critical here to try to review this mod as best as I can.
The dinosaurs themselves - The mobs feel very consistent in the style as well as the textures, ElCeejo has obviously put a lot of work into making things stick to a certain design! The animations are also great, and each animal (except for water mobs and flying mobs) have a sleeping animation during night, which is really cute. Pathfinding is pretty decent, especially compared to other existing mobs mods. The amount of mobs added here, as well as the quality, make for a great experience: I look forward to new updates.
There are a few obvious problems: for example, the pteranodon model has a missing face, as well as the plesiosaurus model, which doesn't make for a good look. Things like velociraptors and smilodons can glitch right through solid nodes because of their small collisionboxes and high speed: and you're going to have some trouble building an aviary for your pteranodons too because they seem to glitch through anything with a bit of lag.
The dinosaurs can also be fairly robotic at times. Sadly, there is no good way to fix this without a lot of new pathfinding code and animations, which no other mod does except draconis (and a few animalia mobs).
For animals with big collisionboxes, enclosures can be easily made and maintained. The electric fences included with the mod will keep your dinosaur inside the enclosure, but it will also damage the dinosaur each time the collisionbox goes into the electric fence, killing dinosaurs if you aren't careful. I'd love to see a better implementation of this concept: like an electric shock which doesn't actually damage the mob, but makes it run a small distance from the fence.
Despite these issues, this is truly an underrated mod with stunning visuals and gameplay, kudos to ElCeejo. More in the comments->
The dinosaurs also get angry too easily, in my opinion, and winning back your dinosaur's heart can be really hard, or in some cases, I have found it impossible. Maybe this is intended(?), but it is not realistic: dinosaurs were not just killing machines.
Stuff unrelated to the mobs - The "Fossil analyzer" / "DNA Cultivator" seems quite unrealistic, creating an embryo from DNA is way more complicated than a single node. My suggestion would be to make more steps to the process (and possibly use gel electrolysis in place of the fossil analyzer?)- But I get it, it's supposed to be fairly easy to play with.