Here are some clipart images I've found that are free for personal use. I've left them Black and White. Feel free to add colors or use part of an image.
Please do not include these images in any other clipart collection, however.
In order of pictures: Pachyrhinosaurus, Parasaurolophus, Pentaceratops, Pliosaurus, Protoceratops, Pteranodon Ingens
Even More Black And White Dinos