Brachiosaurus was a late Jurassic sauropod. It was first discovered during Edward Drinker Cope and Othniel Charles Marsh's famous "Bone Wars." Marsh discovered a skull of the beast in Colorado, and from this one bone he eagerly classified it as a new species in an attempt to beat out Cope. He then proceeded to idiotically place the skull on the body of an apatosaurus and call it a brontosaurus, opening a sardine can of confusion in nomenclature that would carry on even until today. Congratulations on your fantastic legacy marsh.
Another striking feature of brachiosaurus, as you can see from the good doctor up there, was it's head crest. A wall of bone ran down the middle of the dinosaur's head, separating the nasal cavities. These huge nostrils would perhaps given the beast a good sense of smell, although what it would use this sensitivity for is unknown.
And that's it for today, next time will be about nasutoceratops, which will also be the blog's first ceratopsid.
Palmer, Douglas, Simon Lamb, Guerrero Angeles. Gavira, and Peter Frances. Prehistoric Life: [the Definitive Visual History of Life on Earth]. New York, NY: DK Pub., 2009. Print.
(MLA format is just my favorite thing ever)