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Brontosauruses are truly gigantic behemoths, plodding herbivores large enough to be unafraid of all but the most massive predators. Brontosauruses have stout bodies and long, sinuous necks ending in small heads, allowing them to graze from the highest treetops. Their powerful tails are equally as long as their necks and provide counterbalances. Brontosauruses bear their bulk upon four stout legs. Although their feet are capable of crushing entire buildings, these herbivores are generally peaceful and considerate of where they step.

Most brontosauruses are dangerous only when defending themselves or their young, or when panicked enough to stampede. When roused in this way, however, the creatures are truly terrifying: their muscular tails sweep in great arcs and their massive feet crash down heedlessly onto the ground. A brontosaurus is 70 feet long and weighs more than 30 tons.

Brontosauruses belong to a group of dinosaurs known as sauropods, all of which are immense in size. The brachiosaurus is among the tallest of these dinosaurs, and the diplodocus among the longest, but it’s likely that even larger behemoths exist.

Recall Knowledge - Animal (Nature): DC 27

BrontosaurusCreature 10

Source Bestiary pg. 100
Perception +16; low-light vision, scent (imprecise) 30 feet
Skills Athletics +23
Str +9, Dex +0, Con +5, Int -4, Wis +2, Cha +1
AC 28, Fort +21, Ref +14, Will +16
HP 220
Speed 35 feet
Melee Single ActionSingle Action tail +23 (sweep, reach 20 feet), Damage 2d10+13 bludgeoning plus Improved KnockdownMelee Single ActionSingle Action foot +23 (reach 15 feet), Damage 2d8+13 bludgeoningTail Sweep Two ActionsTwo Actions The brontosaurus makes a tail Strike and compares the attack roll to the AC of up to three foes, each of whom must be within its tail's melee reach and adjacent to at least one other target. It rolls damage only once and applies it to each creature hit. A Tail Sweep counts as two attacks for its multiple attack penalty.Trample Three ActionsThree Actions Huge or smaller, foot, DC 29

All Monsters in "Dinosaur"



Source Bestiary pg. 96
Remnants from the world’s primeval era, these enormous reptilian animals still exist in large numbers in isolated and remote wildernesses or far underground within magical Darklands caverns. Lizardfolk, orcs, giants, and other monstrous humanoids sometimes use dinosaurs as mounts, guards, or hunting animals. Humans and other ancestries have also been known to collect dinosaurs, be it to display them in menageries or keep them as exotic pets or guardians. Such activities are generally pursuits of the rich or eccentric, but certain druids and other guardians of nature feel strong kinships with dinosaurs as well and take them on as companions. When dinosaurs establish themselves in regions beyond their normal habitats, it is generally the result of these captive creatures escaping into the wild.

Sidebar - Related Creatures Dinosaur Guardians

As with most animals, dinosaurs can be tamed or domesticated, but the difficulty of this task increases along with the dinosaur’s level. Lizardfolk and orcs are fond of using dinosaurs as beasts of burden, workhorses, mounts, or even war beasts. Certain dinosaurs, such as velociraptors and deinonychuses, make excellent trackers as well. The largest and most dangerous dinosaurs, such as the tyrannosaurus, are generally avoided, although more powerful creatures like giants have been known to be able to keep them as pets, guardians, or even brutal executioners. In certain cities, dinosaurs are popularly featured as combatants in blood sports and other gladiatorial battles.

Sidebar - Treasure and Rewards Dinosaur Resources

As animals, dinosaurs have little interest in treasure (although velociraptors and deinonychuses, like their bird cousins, enjoy keeping sparkling baubles in their nests), but the remains of adventurers strewn about their lairs often still have valuable gear. Dinosaurs can also be harvested for rare and valuable trophies such as teeth, talons, armor plates, and the like.

Sidebar - Advice and Rules Dinosaurs in Fantasy

At first glance, the inclusion of dinosaurs in a fantasy setting might seem strange, but dinosaurs are an excellent creature to use in a game that bridges the gap between familiar real-world animals and legendary monsters. If having dinosaurs mix freely with lions, manticores, and dragons still seems strange to you, consider having them dwell in remote, primeval lands, as suggested in the sidebars on pages 99–100. On Golarion, dinosaurs do exist in the wilder regions of the world, particularly on the continent of Garund, though they are common enough that PCs might find some on display in a menagerie in a northern city, in use as guardian creatures, or even kept by druids as loyal animal companions.

Sidebar - Locations Hollow Worlds

Another classic place that dinosaurs are found in fiction are in “hollow worlds.” Some campaign settings might not contain entire isolated worlds within them, but many, such as Golarion, have expansive underground lands. The deepest region of the Darklands of Golarion—a realm called Orv—is an optimal place to find a hollow world. Typically infused with magic that allows for jungles to grow deep underground (and sometimes even sunlike orbs that illuminate the lands from above, simulating a day‑night cycle), areas such as Deep Tolguth of Orv make perfect places for dinosaurs to roam.

Sidebar - Related Creatures Other Dinosaurs

A wide range of dinosaurs are presented on these pages, but any trip to the movies, exploration of dinosaur books, or a quick online search reveals a wealth of additional creatures that could fit into your game as well. Armor-headed pachycephalosaurs, spike-thumbed iguanodons, duck-billed hadrosaurs, sail-backed spinosauruses, and more await discovery by those who would seek out the mysteries of the lost worlds where the thunder lizards still rule!

Sidebar - Locations Primeval Lands

Dinosaurs fit well into certain types of settings. They’re often found in isolated lands like primeval jungle valleys or plateaus—regions known as lost worlds for their inaccessibility and lack of any encroaching civilization. In addition to dinosaurs, other megafauna can exist in these places as well, along with giant insects or aggressive creatures like bulettes, carnivorous plants, chuuls, and drakes. Such regions can make for perilous and intriguing adventure sites, especially if you combine them with ruins of ancient civilizations to explore once the party has navigated the hostile wilderness regions.