Feathered dinosaurs

About 542 million years ago, an event known as 'The Cambrian Explosion' also known as 'Cambrian Radiation' occurred. It began in the Cambrian period which took place during the Paleozoic Era 542-251 million years ago. It is one of the most significant episodes in the history of life (Conway Morris, 2006). The Cambrian Explosion changed everything. Prior to the Cambrian Explosion, large animals were soft-bodied. Palaeontologists discovered fossils which accounted for approximately half of all…

After dinosaurs went extinct about 65 million years ago, mammals began to evolve and diversify into new niches. In order to understand and disentangle this convoluted history of mammals, paleontologists narrowed the focus of their studies to horse because horse evolution occurred approximately at around 55 million years ago, and their fossil record is highly rich in details. In the next several paragraphs, we will discuss the morphological changes in horse from the Eocene epoch to the Holocene…

When i was six years old i loved dinosaurs so much and to this day i still do. the reason i tell you this is because i would like to be an archaeologist when I have always loved the movie Jurassic park. When ever I went to my grandmothers house we would walk across the creek to look for fossils, and I always loved the way dinosaurs looked i think they look like giant man eating lizards to some people that's weird but to me its not. When I first saw the movie Jurassic park that's when it all…

fossil discoveries of all time, he unearthed the bones of the Tyrannosaurs rex! This discovery Introduce the world Reconstruction of the T. rex type specimen (CM 9380) at the Carnegie Museum of Natural Historyto what is now not only the most popular dinosaur, but arguably the most iconic prehistoric creature known to man today. Just a few years ago, a shocking revelation was made by two geologists that has given us a deeper look at the the evolutionary history of the T-Rex. Stephen Brusatt…

I'm going to talk about the geologic evidence of the permian triassic extinction. This is a volcanic scenario. There are different geologic reasons for the permian triassic i'm going to tell you about them . During this period there has been documented changes in the air. The atmosphere went evey high which means high levels oxygen was about 30%. When it was low it was about 15%. In this time the salinity in the sea was filled with sharply during the period about 250 million years ago…

T.Rex, Spinosaurus, Velociraptor and Pteranodons. All these aren the “popular” dinosaurs but they make up a tiny amount of the total dinosaur race. One of the thousands of dinosaurs was the Giganotosaurus. There are some interesting aspect about this dinosaur, such as its diet, habitat, and some of its special features. The Giganotosaurus was a massive beast and as you may know it would need a lot of food for energy to sustain it. You may be thinking, so what everything needs food, but the…

The creature that is being examined in this experiment is the now extinct Spinosaurus aegyptiacus, a dinosaur that lived in Northwestern Africa about 95 million years ago. The Spinosaurus (fig.1) was a creature that has been estimated to be anywhere from 13 to 18 meters (43 to 60) long, weighed 7 to 9 tonnes (8-10 tons), and is agreed to be by most paleontologists the largest carnivorous dinosaur of all time. It is thought to be a piscivore, although the Spinosaurus’ diet and lifestyle is very…

The Essence of Chaos Michael Crichton’s, Jurassic Park, is the story of a paleontologist dealing with the realities of big business. John Hammond, CEO of InGen, uses his wealth to clone dinosaurs from fossilized DNA. This naturally leads to repercussions and affects every character in the book. Because of its original and thought provoking conceptualization, the book gained worldwide recognition and was made into a blockbuster hit film by Steven Spielberg. While the movie covers the same…

“It’s the first permanent museum exhibit to trace mammal evolution – from the extinction of large dinosaurs to the rise of humans – within the context of epochal changes in the Earth’s geology and climate.” That is the summary Dr. John Harris, lead curator for the Age of Mammals exhibit at the Natural History Museum of Los Angeles, gives about the exhibit. While to some, this description may seem vague, the museum sees it as a way of focusing on “telling a more complicated, ‘big picture story’…

New fossil evidence suggests that dinosaurs originated early in the Middle Triassic time period, during the recovery of life from the Permian-Triassic mass extinction (Benton et al. 2014). Transient episodes of unusually warm and wet conditions, interrupting long periods of cool and dry conditions, may have played a role in mass extinctions and long-term evolutionary trends (Retallack 2013). Although the Permo-Triassic mass extinction wiped out nearly 85% of species, the crises marked the…