The Life Of A Paleontologist

We use fossils to compare and contrast how and organism has evolved over a long period of time and how it has adapted to new changes.

Fossils are the remains of either a plant or animal that lived in prehistoric times, the fossil is usually found preserved into rock. Fossils show us the steps of evolution that life has taken until today. When we trace fossil records back we can start to understand how species have progressed and what they appeared to look like. We can then compare (if the species still exists) what changes they have undertaken by using the fossils as a source. From that proof we can also compare the prehistoric biota with modern day biota and consider possible relatives. As well as being a window to the past, the remains of flora and fauna let us predict how Australian biota may evolve in future.

From both the title of the chapter and the introduction by Dr. Shubin, this chapter begins with a focus on teeth. Because the function of teeth is to break down food before it enters the esophagus, the different shapes of teeth can represent many different things about the organism it belongs to including what type of eater it was (carnivore, herbivore, or omnivore). Teeth are the hardest tissue (not bone) in the human body and therefore fossilize well. As Dr. Shubin stated in chapter one, there must be many points that permit a fossil to make any kind of scientific conclusion. Obviously, the state of their presence is important, so the fact that teeth preserve well allows for them to be great specimens for analysis. Dr. Shubin and his team analyzed fossilized teeth in areas as different as Nova Scotia and the Arizona desert. Studying different fossils in these diverse regions allowed the team to see that mammalian and reptilian teeth are very different. For example, mammalian teeth differ from organism to organism to fit with the organisms need (Cheetahs that eat only meat will have different teeth than deer who are herbivores) and are replaced only once in the lifetime of the organism while reptilian teeth are usually sharp and are constantly replaced if damaged. These differences allowed scientists to characterize fossils as either a reptile or a mammal. Similar to Tiktaalik discussed in chapter one, the discovery of fossils that were part reptile and part mammal allowed the researchers to see that mammals evolved from reptiles, and further supported the theory of evolution. Further studies yielded even more

In the following space, explain the role of fossils in developing the Geologic column. Your explanation must be between 200 and 300 words.

Ichnology, the study of trace fossils, is the principal study in following and learning about trace fossils and how these fossil types indicate habitats. Ichnologists can use trace fossils, such as a track way and walking patterns of dinosaurs, to determine the specific area a dinosaur walked on, which can express a dinosaur species preferred habitat. By examining sedimentary layers and structures, ichnologists can use fossilized tracks to determine what specific habitat a species of dinosaur lived in. The use of uniformitarianism can be used to conclude what specific environment a dinosaur lived in through sedimentary structures. Ichnology uses tracks to determine what habitat a dinosaur inhabited by the pattern that a dinosaur walked in. With nests, Ichnologists can use information to determine what habitat a species of dinosaur lived in to ensure a safe environment for the eggs. Ichnologists can determine if a species of dinosaur stayed in a specific environment by studying the walking patterns of track ways and the indications of dinosaur nests. Ichnologists use track ways and nests to determine preferred habitats due to a plethora of trace fossils that a species of dinosaur can make in its

Paleontology or paleobiology is the study of plant, animal, and microorganism fossils found on the earth. Paleobotany focuses on algae, fungi, mosses, ferns, seed plants

The first chapter of the book discusses the way we can use fossil records to study the biological world. Fossils are one of the major lines of evidence we use to understand ourselves. Surprisingly, we are able to discover them with a high amount of precision and predictability. In particular, field paleontologists have it easier than it has ever been before due to the current information age. The physical hunt for important fossils, however, is much like it has always been. Three factors limiting the number of useful fossil sites include rock age, type (whether or not it can preserve fossils), and number of exposed rocks. So, it takes a bit of luck to reliably find fossils. Thankfully, rock

Layers of soil are laid down on dead animals or plants embalming them. The minerals replace the organic matter creating the fossil.

Paleontology is associated with geology. Paleontology is the result of the development of the Geologic Time Scale. There are many feature that deals with the period of Geologic Time Scale.

Fossil Record are a good way to show the evolution process. They provide scientist with snapshots of the past that, when assembled, illustrate a panorama of

The fossil record is evidence of evolution. Fossils are often fingerprints of evolution. They help scientists track how species evolved

Introduction: Fossils are defined as a physical trace or evidence of life from a prior geological time period which has been preserved. Examples of fossils include burrows, indentations or bite marks, footprints or other impressions, coprolites, hard animal body parts such as bone, shells or horns or mineralized plant remains embedded in stratified rock.

fossils, burial sites, caves, and other sources of information. It is important to learn about

By testing sediment and recording whether it was deposited under conditions of normal polarity and then measuring successive layers, we can build a time chart. By matching different charts from different areas with similar fossils, a more global correlation can be made.

In the science of paleontology, the history of life is studied. Paleontologists study fossils to learn the past ecologies, evolution, and the origins of humans. In order to understand the processes that have led to both the origination and destruction of organisms since life began, paleontologists incorporate both scientific knowledge and studies. Fossil findings are critically important for confirming predictions of evolution theory. Of the many discoveries that are made yearly to add depth to the understanding of evolution, an example is a recent discovery of a creature they named Tiktaalik. The Tiktaalik was uncovered to be a transitional animal between shallow-water fishes and limbed animals. The creature supports the idea that it emerged from both mammals and reptiles, suggesting that the two are related. These findings support prediction of evolution, contradicting the belief that God