The carnivore/omnivore/herbivore army from this question about herbivores has reached the battlefield and the opposing army is a collection of large, scaly, occasionally feathered animals that no one has seen before. Dinosaurs!
Each army has an equal number of carnivores and herbivores in each weight range, so a comparable number of fox sized predators, a comparable number of lion sized predators and so on. On both sides, smaller combatants are more numerous than larger combatants. However, the dinosaurs have a collection of super-heavy carnivores/herbivores that the mammals have no equivalent to. Examples of the super-heavies are the tyrannosaurus-rex at 18,000lbs/8164kgs and the triceratops at 28,000lbs/12,700kgs. The mammal's "super-heavies" are the grizzly at a pitiful 1400lbs/635kgs and the African bull elephant at 15,000lbs/7,000 kg. The only consolation to the mammals is the dinosaurs only have a handful of their super-heavies to field.
The dinosaurs have the same uplift as the mammals (ie, human intelligence but no tool usage and vocal communication regardless of actual physiology). The dinosaur army is composed of dinosaurs strictly from the Cretaceous period. A helpful list can be found here.
Handling the logistics of how to feed so many carnivores and herbivores are out of scope of this question. (Yes, wars are won on logistics but that's a different question). Also, why these two armies are fighting is out of scope.
As the mammal's commander in chief, how would the mammals counter the super-heavies fielded by the dinosaurs?
This is science-based question so links to official sources are recommended but not required.