Poisonous Dinosaurs

I know of Sinornithosaurus, but I don't know of any others.

I'm gonna assume you mean Sinornithosaurus. For one thing, poison is ingested. You're talking about venom(common misconception). Anyways, most scientists agree that Sinornithosaurus probably didn't have venom. Personally, I don't think any dinosaur did. Birds and crocs are their closest living relatives and neither group contains venemous species. Some dinosaurs may have had infectious bites, but not full on venom.

MECH RODAN - What a very interesting topic! I'm of the opinion that members of the dinosaur species were most likely not venomous in the traditional sense. However, some might have carried extremely virulent bacteria in their saliva (something like a Komodo Dragon) that would aid them in swiftly debilitating their prey. If I were to hazard a guess as to which dinosaur-like creatures likely had this adaptation, I'd actually go with Arizonasaurus and other similar animals. :)

there are quite a few features that dinosaurs had the birds and crocs dont (horns and spikes for example). to be honest we cant really be sure. i mean some of the most unlikely dinosaurs couldve had it. i mean the platypus has venom glands and who wouldve guessed that an animal like that would have venom glands?

I don't see why there couldn't be venomous dinosaurs. They are not only related to crocs but other reptiles too, and many of them are venomous. I think that the smaller ones like epidextoterx, archaeopteryx, and sinornithosaurus were venomous. They had to be do they could fully secure a meal. And I think that some herbivourus dinosaurs had poisonous( I actyally mean poisinous) quills or other defensive measures. Like the quills other triceratops and relatives apparently had were probably filled with poison and toxins so if a carnivore tries to attack from behind it will get a mouthfull of poisonous quills. Like a porcupine, bout poisonous. 

TYRANT KING - I wasn't aware that ceretopsians had quills! How very neat! Do share some information! Please? :)

If you are talking about glands like in frogs, they are more close the the neck's veins that in the jaw itself.
Rex, we do have brids that have venom, and in fact they have the same venom that the Dendrobates has. The Batrachotoxin, aparently they even rub on their own eggs to make them safe from predators, I don't know alot about it :(
As the frogss they obtain this toxic in their diet.
So it might not happen like the glands in the frogs, but thinking about the diet and the reproductive defense could be that a feathered dinosaur did the same, the only thing they had to have it, it was the font of the toxin in their diets

@ something real, when they dug up a triceratops skeloton they noticed it had bumps on its bones near the hindquarters and they looked fimiliar to other animals that have quill or feathers. i am sure that trike had thses for a reason and i prevoiously stated as to why it would need them.  now i say that they were about 6 inches to 2 feet. i am unsure as to how long they were so these are just wild guesses. they were on the but and tail of triceratops. in my mind they are blue with black bands. awesome right????

Al, indeed there are toxic birds, but none boast a venomous bite, which I was referring to.

Yeah Sinornithosaurus is the only one I have heard of, but T. Rex might have had bacteria in its jaws, but I would'nt be so sure about that. By the way, I'm sorry if I sound like a smart-alec, its venomous. Poison is bad for your digestive system while venom is bad for your bloodstream. Usually prey animals are poisonous while predators are usually venomous.

Rex did not need bactei in his jaws because his bite was deadly enough as it is. And the poor animal that somehow managed to survive and escape rex's powerful jaws would probably die from infection in the huge wounds. Not from t.rex himself since there is no evidence to prove that notion.