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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 Lisa M. Graziano
Leapfrog Press
Paperback (304 pages)
 | List Price: $15.95*
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Click Here | - ISBN13: 9780981514833
- Notes: Brand New from Publisher. No Remainder Mark.
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 Bruce L. Stinchcomb
Schiffer Publishing
Paperback (176 pages)
 | List Price: $29.99*
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Click Here | - ISBN13: 9780764332593
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By Marty Noble
Dover Publications
Paperback (6 pages; 1)
 | List Price: $1.50*
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Add instant interest to school reports and other flat surfaces with images of the massive Eoceratops, the double-horned Chasmosaurus, the vegetarian Iguanodon, and three other prehistoric beasts.
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By Dougal Dixon
Barron's Educational Series
Paperback (32 pages; 1)
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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 James Lawrence Powell
W H Freeman
Hardcover (268 pages)
 | List Price: $22.95*
Lowest New Price: $12.75*
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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 Alpheus Hyatt
General Books LLC
Paperback (188 pages)
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General Books publication date: 2009 Original publication date: 1903 Original Publisher: Govt. print. off. Subjects: Ammonoidea Paleontology Juvenile Nonfiction / Science |
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By Louis L Jacobs
Institute for the Study of Earth and Man
Paperback (24 pages)
| Lowest Used Price: $2.98*
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"In a few moments, we will be landing at DFW Airport." That is what you hear as you arrive at the world's second busiest airport. But buckle your seat belt as you read this: DFW is the home to dinosaurs, sea monsters, sharks, and other denizens of the ancient world. |
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By Heather Amery
Gareth Stevens Pub
Library Binding (24 pages; 1)
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Describes the physical characteristics and probable behavior of this fierce carnivorous dinosaur. |
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Geological Society of America
Paperback (445 pages)
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SEPM
Hardcover (262 pages)
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Click Here |
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