Bestiary - Thoughts on Animals Part 1

Animals fall into that weird place where they are boring and nobody wants to read about them in a bestiary but they are useful to fill out a campaign. Because of this I think they work best lumped into larger categories that contain simple explanations but multiple statblocks. This is especially true for "Summoned Creatures" and for Dire versions which are just larger versions of the same beast.

Dinosaurs

I'm still trying to figure out if it's best to list a bunch of Theropods or just have statblocks for big, medium, and little under the Theropod heading. It's not as if characters will know the latin names, or that the different theropods are all that different or lived at the same time.
I've loved dinosaurs since I was a kid, but they have changed since then and the super-quick type that are favored by modern paleontologists are probably more than most adventurers can manage, yet they seem necessary for lost worlds, and dinotopia type scenerios so they must be included.

Ankylosaurus (Armored Dino)

• Ankylosaurus

Ceratopsian (horned faces)

• Triceratops

Hadriosaurus (Duck Billed)
Ornithomiimosaurs (Bird Mimic)
Pachycephalosaurus (Bone-headed)
Plesiosaurus
Prosauropods (Small soropauds)
Pterandon

Raptors

• Deinonychus
• Megaraptor
• Utahraptor
• Velociraptor

Sauropods

• Apatosaurus (Brontosaurus)
• Brachiosaurus
• Diplodocus

Stegosaurs (Spiked)

• Stegosaurus

Theropods (excluding Tyrannosaur and Rapters)

• Ceratosaurus
• Gigantosaurus
• Spinosaurus

Tyrnanosaurs

• Allosaurus
• Tyrannosaurus Rex

Megafauna

Megafauna are the super-sized animals that lived between the time of the dinosaurs and recorded history. In many cases their ancestors survive in a smaller more recognizable form.
Auroch
Bear, Cave
Daeodon
Deinosuchus
Dire Wolf
Glyptodon
Ground Sloth
Hyaenodon
Lion, Cave
Mammoth
Mastodon
Megalania
Paraceratherium
Rhino, Wooly
Smilodon
Terror Bird

AQUATIC

Cephalopod

Octopus
Octopus, Giant
Squid
Squid, Giant

Cetacean (Whale)

• Blue Whale
• Crimson Whale
• Dolphin
• Killer Whale
• Narwhale
• Whale (Common)
• Dolphin

Eel

• Electric
• Moray

Fish

• Barracuda/Gar
• Piranha
• Quipper

Seahorse, Giant

Shark

• Bull
• Great White
• Hammerhead
• Tiger

Stingray
Turtle, Snapping