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Cretaceous Period
The Cretaceous period was the final of the three periods into
which we divide the Mesozoic Era (the previous periods being
the
Triassic period,
and the
Jurassic period),
and occured between 144 million and 65 million years ago.
Many well-known types of dinosaurs
lived during the Cretaceous, including
Ankylosaurus,
Iguanodon,
Pachycephalosaurus,
Protoceratops,
Spinosaurus,
Styracosaurus,
Triceratops,
Tyrannosaurus rex, and
Velociraptor.
It was also during the Cretaceous period
that the first flowering plants
("angiosperms") began to appear, including, for example,
beech, fig and magnolia.
At the end of the Cretaceous period (known as the K-T boundary), dinosaurs, and
and a variety of other animals all suddenly became extinct.
There have been many theories proposed for why this
mass extinction
occured.
Dinosaurs - Cretaceous Period
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Here is a map of the world in the late Cretaceous period.
You will notice that the continents have begun to move towards
their present positions (movements which continued into the subsequent Tertiary era),
with the Atlantic Ocean opening up between Europe and North America, and India
continuing its long journey Northwards.
The Cretaceous world was cooler than it had been in the
previous
Triassic
and
Jurassic.
periods, but still warmer than that of today.
At higher latitudes snowfalls became common, although the climate generally
remained warm even at such latitudes - glaciation was
restricted only to alpine regions in high latitudes.
Meanwhile, tropical parts of the
globe were much wetter than they had been previously.

Cretaceous Dinosaurs
Here are some of the types of dinosaurs
that lived during the Cretaceous period:
Timeline:

Related Information & Resources
See Also

Books about the Cretaceous Period Here are some books from Amazon.com:
Disclosure: Products details and descriptions provided by Amazon.com. Our company may receive a payment if you purchase products from them after following a link from this website.
By James Lawrence Powell
W H Freeman Hardcover (268 pages)
 | List Price: $22.95* Lowest New Price: $13.95* Lowest Used Price: $8.10* Usually ships in 24 hours* *(As of 12:49 Pacific 2 Sep 2010 More Info)
Click Here | Product Description: In 1980, the radical theory was proposed that a comet or meteor struck the Earth 65 million years ago, wiping out the dinosaurs and 70 percent of all other species. "Night Comes to the Cretaceous" is the first comprehensive and objective account of how this incredible theory has changed the course of science. 35 illustrations. |
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By Lisa M. Graziano
Leapfrog Press Paperback (304 pages)
 | List Price: $15.95* Lowest New Price: $8.27* Lowest Used Price: $6.78* Usually ships in 24 hours* *(As of 12:49 Pacific 2 Sep 2010 More Info)
Click Here | Product Description: A long-extinct beetle appears in a physics lab. Four-and-a-half people and a dog are hurled 65 million years through time, to the Age of the Dinosaurs, and paleontologist Julian Whitney and his companions have only one chance for rescue. Meanwhile in the lab, police chief Sharon Earles must solve the mystery of why half a body remains where five people had just been. Physicists try to determine what went wrong but can they fix the vault in time to retrieve the missing people—and do they want to? |
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By Will Hubbell
Ace Paperback (352 pages)
 | List Price: $6.50* Lowest New Price: $2.00* Lowest Used Price: $0.63* *(As of 12:49 Pacific 2 Sep 2010 More Info)
Click Here | Product Description: A time-warp machine offering the ultimate travel experience is ready to take off to the Cretaceous Period when dinosaurs ruled the earth.
Now paleontologist Rick Clements and a select group of tourists have arrived-unfortunately, just in time to witness the meteor that once laid waste to earth 65,000,000 years ago. |
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By Alan Graham
Oxford University Press, USA Hardcover (370 pages)
 | List Price: $119.99* Lowest New Price: $119.99* Lowest Used Price: $52.16* Usually ships in 24 hours* *(As of 12:49 Pacific 2 Sep 2010 More Info)
Click Here | Product Description: This book is a unique and integrated account of the history of North American vegetation and paleoenvironments over the past 70 million years. It includes discussions of the modern plant communities, causal factors for environmental change, biotic response, and methodologies. |
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By Peter W. Skelton & Simon P. Kelley
Cambridge University Press Paperback (360 pages)
 | List Price: $68.00* Lowest New Price: $59.09* Lowest Used Price: $58.52* Usually ships in 24 hours* *(As of 12:49 Pacific 2 Sep 2010 More Info)
Click Here | Product Description: This textbook on the Cretaceous era explores the interactions between the physical, chemical and biological processes operating within, and at the surface of, the Earth during this extreme period in history. Characterized by high atmospheric carbon dioxide and global warmth, the Cretaceous era is very relevant to future climatic change studies. Designed for use in undergraduate and graduate courses, the text includes chapter summaries, focus boxes, and Questions and Answers throughout. It is supported by a website hosting sample pages, selected illustrations, and exercises. |
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By Dougal Dixon
Barron's Educational Series Paperback (32 pages; 1)
 | List Price: $4.99* Lowest New Price: $2.31* Lowest Used Price: $0.01* Usually ships in 24 hours* *(As of 12:49 Pacific 2 Sep 2010 More Info)
Click Here | Product Description: The great and final age of huge dinosaurs saw such creatures as Tyrannosaurus Rex, the flying Pterodactyl, the horny Triceratops, and many others. Prehistoric World Books combine dramatic, scientifically accurate color illustrations with a wealth of factual details based on archaeological findings to give young readers a vivid picture of the exotic succession of animals that inhabited the Earth in the prehistoric era. Dating back to perhaps 300 million years ago, with the earliest-known life forms, the six titles in this series carry the history of animal life forward to man-like creatures such as homo erectus, and finally to prehistoric homo sapiens, or human beings like ourselves, whose origins date back an estimated 200,000 years. Individual species are presented on two-page spreads that show large illustrations of the animal when it was alive, photos of reconstructed fossil skeletons, and a list of descriptive factual details. These books are great sources for elementary school class projects, or simply for fun reading. |
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By Alan Graham
Missouri Botanical Garden Press Hardcover (617 pages)
 | List Price: $95.00* Lowest New Price: $95.00* Usually ships in 24 hours* *(As of 12:49 Pacific 2 Sep 2010 More Info)
Click Here | Product Description: This volume summarizes the history of Latin American vegetation from just prior to the asteroid impact at Chicxulub, Mexico, at the end of the Cretaceous period through the rapid-paced events of Holocene and Recent times, tracing highlights in the origin of lineages and plant communities that constitute a fundamental part of the tropical ecosystems of the New World. Emphasis is placed on the array of available methods and approaches, as well as on the need for incorporating ancillary information from the many relevant disciplines and for assessing the paleobiological results within the context of independent lines of inquiry particularly important for understanding the vast and complex communities of Latin America. The summary is based on approximately 350 fossil floras and 4,000 literature references to vegetation history and related topics. It includes a catalog of some 10,000 fossil plants arranged in tables and appendices by geographic location (country or region), taxonomic group, and geologic age. From this unique database, lineage histories, terrestrial paleoenvironments, migrations, and responses to evolutionary processes are reconstructed that have shaped the Latin American vegetation over the past 100 million years. |
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By V. A. Vakhrameev
Cambridge University Press Paperback (338 pages)
| List Price: $33.99* Lowest New Price: $33.99* Not yet published* *(As of 12:49 Pacific 2 Sep 2010 More Info)
Click Here | Product Description: Originally published by Cambridge in 1991, this book is a translation of a unique Russian study of fossil plant distributions in the Jurassic and Cretaceous world. The core of the work is the description and assessment of floras of the USSR, China and Japan. Information on the floras of this extensive and productive area had hitherto been available only in scattered and sometimes obscure Russian journals. Vakhrameev also summarises the more familiar Western work and divides the continents into regions and provinces illustrating the palaeolatitudinal climatic arrangement of floras. The work deals first with megafossil plants and with land plant palynomorphs. The time covered from 200 to 65 million years ago ranges both before and immediately after the main angiosperm radiation from about 130 to 100 million years ago. Vakhrameev's work represents a vast source of data, which will be of interest to any student of Mesozoic seed plants. |
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By Dale J. Nations
Geological Society of Amer Paperback (216 pages)
| List Price: $12.00* Lowest Used Price: $114.94* *(As of 12:49 Pacific 2 Sep 2010 More Info)
Click Here |
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