From the publisher:
Need a dinosaur or prehistoric mammal to fill out the primordial corners of your campaign world? Looking for an intriguing new mount, animal companion, or familiar for your PC? Then look no further; the Animal Archives series from Blackdirge Publishing brings new prehistoric animals and dinosaurs to your OGL game.
Now you can check out the Animal Archives product line for free with the Animal Archives Sampler. The sampler contains two new prehistoric monsters, one each from the Animal Archives: Prehistoric Animals and Animal Archives: DinoFiles lines. If you already own all the Animal Archives products, then this is simply a free addition to your collection; however, if you’re new to the series, this product serves as an excellent example of what the Animal Archives series offers.