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Cretaceous Era Essay Examples

1,012 total results
An Introduction to the History of the Cretaceous Extinction
There are many therioes and ideas on what caused the Cretaceous extinction but Im going to focus more on the asteriod theory. Some therioes include: volcanic activity, an exploding supernova, and starvation etc. and I will cover them but mainly on the asteriod theory. The reason is because the asteriod theory is the most co...
1,208 words
3 pages
Mass Extinction in Ordivician, Permian, Triassic and Cretaceous Eras
The history of life has been punctuated by brief episodes of mass extinction. The five major ones ended the Ordivician Devonian, Permian, Triassic, and Cretaceous eras (see fig ure below ). A general pattern was found when the extinctions were studied: 1. Extinction strikes in both the land and the sea. 2. On the land,...
1,745 words
4 pages
An Analysis of the Earth's History into Different Parts Called Eras and Periods
Geology Final The Earth is 4.5 billion years old. We split Earth's history into different parts called eras and we split the eras into smaller parts called periods. While these periods have some similarities, they are all very unique. When comparing and contrasting periods it's best to use periods from different eras a...
1,097 words
2 pages
The Historical and Social Research of the Victorian Era
Historical and Social Research: The Victorian Era Politics (1850 1900) The Victorian era was a prominent one for political power. It saw the rise and fall of Queen Victoria (her reign was from June 20th 1837 to January 22nd, 1901). She died at age 81 and ruled over Great Britain and Ireland after her husband and firs...
993 words
2 pages
Closing of the Cretaceous Period Marked a Major Transition in Earth's History
The tertiary consisted of two main epochs. The Paleocene, the Eocene and the Oligocene, which make up the Paleogene; and the Miocene and Pliocene, which make up the Neogene. The close of the Cretaceous Period marked a major transition in Earths history. Ammonoids and marine reptiles disappeared from the sea. Marine taxa th...
1,373 words
3 pages
A Description of the Extinction of the Dinosaurs 65 Million Years Ago
Something happened 65 million years ago, at the end of the Cretaceous period, something so devastating that it altered the course of life on earth. It seems like it happened so sudden, as geologic time goes, that almost all the dinosaurs living on earth disappeared. So how did these dominant creatures just die off? Was it a...
392 words
1 page
The History and Extinction of the Deinonychus Creatures
Deinonychuses were vicious creatures that walked the earth about 100 million years ago during the Early Cretaceous period. Deinonychus is Greek for deinos, terrible; onychos, claw, and is genus of small, bipedal, flesh-eating dinosaurs of the suborder Theropoda, that lived during the Early Cretaceous period, which began ab...
660 words
1 page
An Analysis of the Transition from the Cretaceous Period in Earth's History
The tertiary consisted of two main epochs. The Paleocene, the Eocene and the Oligocene, which make up the Paleogene; and the Miocene and Pliocene, which make up the Neogene. The close of the Cretaceous Period marked a major transition in Earth s history. Ammonoids and marine reptiles disappeared from the sea. Marine taxa t...
1,377 words
3 pages
Characteristics of Tyrannosaurus Rex
Sanders 1 Brett Sanders Biology Block. 2 November 30, 1999 Tyrannosaurus Rex The name says it all. This group of huge carnivores ruled the land during the Cretaceous period. Short but deep jaws, long hind limbs (legs), beady eyes, a long muscular tail, and tiny forelimbs (arms) make up a tyrannosaur. The Tyrannosauri...
923 words
2 pages
The Ever-Changing Geological Characteristics of Pennsylvania
The earth is an ever-changing chunk of rock to put it at the lowest level of comprehension available. This rock that we call home is brewing with billions of life forms and is constantly changing every day. This can be attributed to the various cycles that are at work on this planet of our, from the hydrological system to t...
1,444 words
3 pages
US Goals and Outlooks Changed During the Progressive Era
During the Progressive Era, the United States goals and outlooks changed dramatically. The economy was going from domestic to worldwide. America's interest expanded to China, the Pacific, and the Caribbean. People say that Teddy Roosevelt was a visionary and a genius. He truly held both these traits, the nation would not be...
477 words
1 page
The Evolution of Art: The Victorian and the Romantic Era
Art has evolved in different eras of time from the most ancient to recent ones and each with its distinctive characteristics and significance.  A critical look at each specific era has been as a result of the previous era's events and happenings and the tie that brought them together. Preceding the Victorian Era was the Rom...
1,478 words
3 pages
The Three Major Eras of Law Enforcement Throughout History
Since the founding of this country, to the wild west, and up to the present, the agenda of the policing bodies have been clear: to uphold and enforce the laws of our society. Of course the way they do this today had undergone changes from the first police forces of early America, law enforcement has seen trends come and go....
2,324 words
5 pages
Fashion, Entertainment, and the Justice System during the Tudor Era
Fashion life varied from each social class; however they were also the same. First a large majority of the clothes were made from wool, but the wool was differed the rich had high quality wool that was most likely soft and did not last too long. While the poor wore “coarse wool,” (Lambert Clothes in Tudor England pg 1) this...
911 words
2 pages
A Cultural Overview on the Shakespeare's Era
Cultural Overview Shakespeare's Era (1500's AD) William Shakespeare lived in the late 1500's, which was a time where England was relatively divided in terms of living standards and social status, while also recovering from the "Black Death" that still ravished it's lands. The average step in the ladder of so...
925 words
2 pages
Greatest Authors of the Enlightenment and the Romantic Era: An Essay on William Blake and Thomas Jefferson
The Enlightenment and the Romantic Era are two periods that differed greatly. Out of these contrasting eras came different literary styles and purposes. Thomas Jefferson and William Blake are two primary examples of diverse authors from equally diverse eras. Although the Romantic Era grew alongside the Enlightenment, it pla...
377 words
1 page
The Positive and Negative Aspects of Being An American Teenager in an Era of Technology
There is no doubt that over the years the life of the typical American teenager has changed. I feel it is partly due to the expansion and evolvement of the American society. Technology mostly has broadened our society and I feel teenagers have just adapted to it. I also feel society has basically set the standards for teena...
497 words
1 page
Art Music and Entertainment in the Elizabethan Era
The Sounds of Elizabethan Times The Elizabethan Era was a time when music and art were growing more and more each day. This time period, also known as the English Renaissance, is still well known for its styles and sound of music. Queen Elizabeth herself was a musician, and played both the lute and the virginal. It was...
864 words
2 pages
The Details About the Elizabethan Era Weaponry and War During the Elizabethan Era
Elizabethan Era Weaponry War during the Elizabethan era, as well as in any other period of time, was almost inevitable. Battles will always be fought and people will always fall as a result of this. It's axiomatic that the side with the more advanced weapons will easily crush their enemies. During the Elizabethan era weap...
670 words
1 page
The Great Cultural, Economic and Social Changes in the Renaissance Era
A booming economy along with the communes desire to obtain political power led to the formation of a new class in society which ultimately lead Europe into a period simply known as the Renaissance. Northern Italys thriving economy was a result of great advances in shipbuilding. Their ships were capable of sailing year round...
1,327 words
3 pages
The Changes from Middle Ages to Renaissance in Europe
From the Middle Ages to the Renaissance, Europe underwent a great deal of changes, including attitudes towards learning, science and technology, art and literature, and the way humankind felt about themselves and towards their society. The Middle Ages were the time period between ancient and modern times in Western Europe....
776 words
2 pages
A Comparison of the Medieval and Renaissance Eras
Comparison of the Medievil and Renaissance Eras It is amazing how significantly various aspects of society can and will change over a prolonged period of time. Between the time periods of the Medieval era and the Renaissance, one can note numerous significant changes, mainly those pertaining to art and religion. In...
1,099 words
2 pages
An Overview of the Music of the 1920s and 1930s
Music of the 1920s and 1930s
Durring the nine-teen twentys and thirties the music scene was
as popular as ever. There was the Jazz Era durring the twenties and the
Swing Era durring the thirties. Merging into the early twenties a type of
improvised music , called Dixieland Jazz was being recorded. Famous
artists includeing...
380 words
1 page
A Report on the Future of the Universe in the Magazine Sky and Telescope
Sky & Telescope
Patrick Sullivan
2nd hour Astronomy
Mr. Wessling
Magazine Report
Sky & Telescope
The Future of the Universe
The magazine Sky & Telescope is a very helpful magazine for beginning and amateur astronomers. The magazine contains information on new star clusters, constellations, galaxies, and even pos...
502 words
1 page
The Political Disillusionment That Dominated the Post Civil War Era in the United States
After the soaring ideals and tremendous sacrifices of the Civil War, the post-War era of the United States was generally one of political disillusionment. Even as the continent expanded and industrialized, political life in the Gilded Age was marked by ineptitude and stalemate as passive, rather than active, presidents mere...
940 words
2 pages