Saltopus is a genus of very small bipedal dinosauriforms containing the single species S. elginensis, which was about the size of a domestic cat.

The Cryolophosaurus was also the first non-avian dinosaur from the continent to be officially named. It had a bizarre crest on its head that looked like a Spanish comb or Elvis' hairdo, leading some to suggest the unofficial name Elvisaurus.

In 2007, Nicolas Cage outbid fellow actor and auction enthusiast Leonardo DiCaprio for the 67-million-year-old skull of a Tyrannosaurus bataar (a close relative of the T-Rex). Cage paid more than $270,000 for the fossil, but later turned it over to U.S. authorities when he learned that it had been illegally smuggled from Mongolia.

The Nqwebasaurus was found in South Africa in the Kirkwood Formation, which is called Nqweba in the native language of the Xhosa. It had a long, three-fingered hand which included a partially opposable thumb (a "killer claw").

It had up to 800 teeth (although only a fraction were in use at any given time) that were constantly being replenished, and were arranged in groups called batteries, with each battery having 36 to 40 tooth columns in each side of each jaw and three to five teeth per column. The great size and numerous teeth of Triceratops suggests that they ate large volumes of fibrous plant material, with some researchers suggesting palms and cycads.

It has been proposed that sauropods, including Brachiosaurus, may have had proboscises (trunks) based on the position of the bony narial orifice, to increase their upward reach. Fabien Knoll and colleagues disputed this for Diplodocus and Camarasaurus in 2006, finding that the opening for the facial nerve in the braincase was small. The facial nerve was thus not enlarged as in elephants, where it is involved in operating the sophisticated musculature of the proboscis. However, Knoll and colleagues also noted that the facial nerve for Giraffatitan (a close relative of Brachiosaurus) was larger, and could therefore not discard the possibility of a proboscis in this genus.

The genus name is derived from the Greek words di meaning "two", lophos meaning "crest", and sauros meaning "lizard"--a reference to the pair of longitudinal, arched crests on its skull. The function of the crests is unknown. They were too weak for battle, but may have been used in visual display, such as species recognition and sexual selection.

The initial discovery of Archaeopteryx was a single fossilized feather, unearthed in 1860 or 1861 and described in 1861 by Hermann von Meyer. It is currently located at the Natural History Museum of Berlin. The first skeleton, known as the London Specimen (BMNH 37001), was unearthed later that year near Langenaltheim, Germany.

It had a massive tail club that seems to have been an active defensive weapon, capable of producing enough of an impact to break the bones of an assailant.

Velociraptors are well known as vicious and cunning killers thanks to their portrayal in Jurassic Park, but the "raptors" portrayed in the films and novels were actually modeled after Deinonychus. Author Michael Crichton used the name of the turkey-sized Velociraptor in place of Deinonychus because it was "more dramatic," but met with Deinonychus expert John Ostrom several times at Yale University to discuss details of the animal's possible range of behaviors and appearance, and at one point admitted that the Velociraptor of the novel was based on Deinonychus in almost every detail, and that only the name had been changed.