Free browser games are the secret to cubicle survival and, possibly, lasting satisfaction in life. Luckily, Blurst has a couple of dinosaur themed games available. You'll need to download the Unity Player. Blurst games kind of look like Gamecube games, so they're a little more high-tech than your standard quick-loading flash game.
Off-Road Velociraptor Safari: You drive around in a jeep, trying to catch velociraptors. The controls are a little jank, though this could be due to the fact that I'm playing on my five year old desktop, with the keyboard controls. Mega bonus points for the fact that they feature feathered velociraptors!
Jetpack Brontosaurus: My aforementioned computer is not fast enough to play this one. But it sounds awesome. And looks that way, too: