Porcupine quills, big fangs, and a parrot-like beak are only three of the strange qualities that this newly discovered plant-eating dinosaur, known as the Pegomastax africanus, possesses.
This tiny Dino, measuring in at about 2 feet tall, is a newly discovered species of heterodontosaur. It is about the size of a housecat and used its giant fangs for self-defense and for attracting mates.
Two Sinocalliopteryx gigas, which are carnivorous dinosaurs about 6 feet long and covered in hair-like fuzz, were discovered in Liaoning, China with evidence of their last meals remaining in their stomachs.
One of the paleontologists working with the specimens stated that stomach remains are “…extremely rare in the fossil record”, so this discovery gives scientists evidence of interaction between dinosaurs. Though it is still unknown whether or not these dinosaurs hunted or scavenged the prey found in their stomachs, it gives scientists a look into their diets.
A dinosaur foot print was found in the backyard of NASA’s Goddard Space Flight Center campus in Maryland, measuring in at 12-inches wide. The footprint is believed to belong to a Nodosaur, a plant-eating, armor studded dino that roamed the area about 110 million years ago.
Several other smaller dinosaur footprints were also discovered in the backyard of NASA, most likely from theropods.
Several remains of primitive shark’s teeth, with at least three of the teeth dating back from 270 million years ago, were discovered in what is known as the Kaibab Formation of northern Arizona. It is believed that the three sharks range from about 3 feet to 20 feet long, and that Arizona was home to a very diverse shark population in the Cretaceous period.
About 75 million years ago, duck-billed and horned dinosaurs flourished in Canada, while only a few of these species emerged in the United States.
Scientists believe that this diversity among dinosaurs caused a dinosaur boom when the Rocky Mountains were formed, creating geographic and ecological barriers between species. This not only rapidly increased the population of certain dinosaur species, but it in turn reduced the pace at which new species evolved.