Looking at the event timetables, I’ve noticed some creatures haven’t had unlock events whether they’re tournaments or clash of titans. They are:
Yutyrannus (Battle stage as well)
Suchodus (though I think hopefully it will be this weekend since it’s an aquatic)
Mosasaurus (Battle stage as well)
Megatherium (Battle Stage as well)
Correct me if I’m wrong or if I forgot any.