Advancements Of Modern Paleontology : A Research Term Paper

Faith and Surovell hypothesize a statistical analysis will uncover whether a temporally spread out extinction or a quick extinction killed North America’s Pleistocene mammals, a debate that has split paleontologists and archaeologists into two diametrically opposed sides for years. (Faith and Surovell, 2009). The debate on the extinction method has been heated due to the absence of fossil records of 19 of the 35 genera (Faith and Surovell, 2009). Faith and Surovell test whether finding only 16 genera in the fossil record in the terminal timeframe (between 12,000 and 10,000 radiocarbon years ago or between about 11,800 - 9,400 B.C.) is a result of a sampling error, or an extinction happening over a long period of time (Faith and Surovell, 2009).

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

The fossil of Tiktaalik confirmed a major prediction of paleontology as it shows the characteristics

The skeletal characteristics of these hominines suggest that their mode of locomotion was likely a cross between occasional bipedalism and obligate bipedalism. From the reading we have learned that obligate bipedalism is bipedal locomotion that is practiced all of the time while occasional bipedalism is bipedalism that is practiced on occasion. The ratio of arm length to leg length (longer arms) suggests that they did spend time climbing trees, however the cranial and post cranial traits of these fossils suggest that they spent much of their time on the ground and likely ambulating bipedally combined with a variation of upright walking and knuckle walking. This is evidenced by two factors: the fact the foramen magnum of the skull is centrally located, and the ratio of arm to leg length. In creatures with bipedal ambulation, the foramen magnum is located in the center of the base of the skull to keep the head aligned over the center of gravity of the creature. If the fossils were walking primarily with their knuckles, the

Throughout the book, Shubin illustrates the life of a paleontologist through engaging stories. Paleontologists work long hours, days and even years just to make one meaningful discovery, however each discovery contributes to a missing puzzle piece in evolution.. Shubin compares searching for fossils in the Arctic as “worse than finding the proverbial needle in the haystack” (Shubin, 2009). While reading through Shubin’s accounts of discovering fossils the reader will feel as if they are there uncovering new insights into the history of evolution. One can expect to learn about the arm, hand, teeth, head, nose, eyes and ears of

Paleontology, or the study of fossils, was still a young science at the start of Victorian times, and the idea that fossils were the remains of species extinct for millions of years was only gradually taking hold. The term "dinosaur," meaning "terrible lizard," was coined in 1842 by the British paleontologist Richard Owen, who went on to produce the first life-size reconstructions of dinosaurs based on the evidence of their skeletons. The Victorian era saw the rise of the first great dinosaur hunters, including the legendary American rivals Othniel Charles Marsh and Edward Drinker

The central idea of this article is the study of the Storr Lochs Monster and how its study can be applied to more fossils being found and studied in Scotland and in the Middle Jurassic Period. The author states that very few fossils can hunted down and studied in Scotland, and in the rest of the world fossils from the Middle Jurassic Period, when this creature lived, are very rare. Steve Brusatte, the Paleontologist from Scotland, said "We know that quite a lot was happening during the Middle Jurassic Period" he also said "It's frustrating because it seems like an active period in evolution but one with very few fossils" and also inputted that he hopes after the study of the Storr Lochs monster that an increase in Scottish paleontology can

The author and his colleagues chose to focus on 375 million year old rocks in their search for fossils because amphibians that look dissimilar to fish were discovered in 365 million year old rocks, while fish without amphibian characteristics were discovered in 385 million year old rocks. Thus, it is possible that the evolutionary intermediary, or the “missing link” between fish and amphibians, would be discovered in 375 million year old rocks, between the two time periods. The rocks examined were sedimentary in composition, as the gradual and relatively gentle formation of sedimentary rock under conditions of mild pressure and low heat are conducive to the fossilization of animal remains. Sedimentary rock is also often formed in rivers and seas, where animals are likely to live. This site provides a resource that describes means by which fossils are formed and how the fossil record may be interpreted, and shows some examples of fossils demonstrating evolution through geological periods: http://www.fossilmuseum.net/fossilrecord.htm. In 2004, Shubin and his colleagues were looking for fossils on Ellesmere Island, in northern Canada. This location was chosen because of its lack of human development, as well as of obstructing natural formations and life forms such as trees, which

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

Some skills I hope to develop in participating in this experience are a broad understanding of how to conduct research, utilizing it beyond the college environment. In addition, I anticipate this will train and offer an in-depth knowledge of Paleobiology that a course and a textbook could not. One reason is that the research will be conducted in a laboratory that several professionals use that I would otherwise have limited access to. Obtaining this practice in a lab, I can utilize and engage in the concepts and principles of any scientific research, amplifying both my verbal and writing abilities in the process, accessing them in a future professional setting. Furthermore, participating in this research will permit me to analyze the influences of human activities on aquatic life with a Notable Professor who has recently obtained a Fellowship that has profited both his students and his own study, enabling them to research the northern Gulf of Mexico. These skills are just several I wish to emerge, however, I am optimistic that more will arise all throughout the research and whatever follows.

: Fossils are the remains or traces of ancient organisms which have been preserved. For example, a fossil can exist as skeletal remains or even as a footprint. Such organisms are subjected to a slow rate of decaying since they have been rapidly buried under conditions that facilitate this. It is common for fossils to occur as hard-bodied organisms as these are more resistant to environmental influences. Fossils are usually found embedded in rock. The layers of rock are of different age and makeup. Hence fossils found in one layer would vary in characteristics from those found in another layer. They can be observed and analyzed through visual as well as radiometric means so that the age and morphology can be determined. These features indicate

My outside source for questions 3 and 4 is a journal by Pat Shipman titled Fossils. This journal was published in The New Scientist Vol. 215, Issue 2876, p. 8-16.

These techniques led to the discovery of the boundary between the two eras. A single thin layer of clay found within predominantly limestone rocks established this. By comparing the marine life found in, above, and below the clay, the marine life, like the dinosaurs, had been terribly affected by the extinction event. The percentage of life in the upper layers was dramatically lower than that in the lower. This was far more compelling than what was suggested by dinosaur’s fossils.