From publisher blurb:
Cora’s Guide to Dinosaurs is a ‘zine size guide to dinosaurs and barbarians for 5e! Unleash your rage with four new barbarian classes, from the Titan Master’s oversize mounts to the Scorpion Warrior’s mastery of the desert, command a pack of animal allies as the Beast Whisperer or ride a utahraptor into battle as the Raptor Master!
Lay giants low with new rules for colossus climbing, embrace the power of the wilderness with new feats, and brave the most hostile environments imaginable with new rules for extreme environments and deadly storms. Bring peace to the borderlands with a new campaign structure in which completed quests make regions safer, adding a layer of strategy and time management that connects your dungeon delves and monster hunts.
And as a GM, figure out how to give your setting a history that players will actually care about and engage with. Y’know that old advice from AD&D about how you should start your campaign by thinking up your setting’s creation myth? Don’t do that.