I have one that is a separate mod from JC, I've been using that one since the mammals in build 98 was WIP, and it adds more mammals in 1.4.0. I might remove the separate Bygone Age mod when I see more Ice Age creatures in JC2. I'm waiting to be surprised this July... I do remember that I announced a park WAYY back when, asking for pen ideas... this is the park I was talking about. I got T.rex, Deinonychus, Velociraptor, Achillobator, Compy, Spino, Allo,, Dilo Mosasaurus, and Sarchosuchus. I admit most are from F/A, but I have JC mobs, too. Waiting for JC2 is the reason why I'm refraining from making the Herbivores's enclosures.