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Cretaceous Period Essay Examples

974 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
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
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 Problems of the Poor in the Period between 1471 and 1626
What were the major problems of the poor in the period 1471 1626 and how were they alleviated? There was a massive increase in poverty and the problems faced by the poor in the period 1471 1626, this was due to a number of interdependable social, economic, and monarchical changes throughout the period. There was a high ris...
1,939 words
4 pages
The Characteristics of the Cambrian Period
The Cambrian Period marks an important point in the history of life on earth; it is the time when most of the major groups of animals first appear in the fossil record. This event is sometimes called the "Cambrian Explosion", because of the relatively short time over which this diversity of forms appears. A lot c...
1,084 words
2 pages
The Science and Culture of Baroque Period and Its Influence on Today's Society
There were many difficulties and challenges dealt with in the seventeenth century, some which have many similarities to difficulties and challenges in todays society. During the 17th Century; also known as the Baroque Period, many investigations and discoveries formed and changed the way society viewed the world. For exampl...
451 words
1 page