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Seismosaurus
Seismosaurus was a massive plant-eater (herbivore) that lived in North America
during the
Jurassic period, between about
155 and 145 million years ago.
When initially discovered, Seismosaurus was believed
to be between 130 and 170 feet (40 to 52 meters) in length,
with most of its length was taken up by its very long neck and tail, but the body and head
being both comparatively small.
Recently however there has been discussion among scientists about Seismosaurus,
firstly about whether it should be
classified as a separate genus from
Diplodocus,
and secondly about its length - some recent estimates put its length as "only"
110 feet (33.5 meters).

Seismosaurus was a herbivore (plant-eater) that lived from 155 to 145 million years ago

Related Information & Resources
See Also

Seismosaurus Facts
Here is a summary of some of the key facts about Seismosaurus:
- Seismosaurus was a genus of dinosaur. Some scientists have argued that Seismosaurus should be classified as a species of Diplodocus.
- "Seismosaurus" means "earthquake lizard" (a reference to its enormous size).
- Seismosaurus was a member of the Saurischia ("lizard-hipped") order of dinosaurs. What this means, is that although Seismosaurus was not closely related to lizards, it did have similarly shaped pelvic bones.
- Seismosaurus was a Sauropod - a member of a group of related large quadrupedal herbivorous (plant-eating) dinosaur with long necks.
- Seismosaurus lived between about 155 million years ago and 145 million years ago, during the Jurassic period.
- Seismosaurus lived in North America.
- Seismosaurus was a herbivore (plant-eater).
- Seismosaurus is thought to have been a grazer, and probably could not have raised its head very far above the ground level.
- Seismosaurus was possibly about 130 to 170 feet in length (40 to 52 meters). There are however some scientists who believe that Seismosaurus was actually a species of Diplodocus, and was perhaps "only" about 110 feet (33.5 meters) long.
- Seismosaurus weighed about 25 to 30 tons.
Seismosaurus Books Here are some books from Amazon.com:
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By David Gillette
Columbia University Press Released: 1999-02-15 Paperback (218 pages)
 | List Price: $28.00* Lowest New Price: $5.92* Lowest Used Price: $0.45* Usually ships in 24 hours* *(As of 06:55 Pacific 13 Mar 2010 More Info)
Click Here |
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By Don Lessem
Carolrhoda Books Hardcover (40 pages; 1)
 | List Price: $19.93* Lowest New Price: $19.50* Lowest Used Price: $0.01* *(As of 06:55 Pacific 13 Mar 2010 More Info)
Click Here | Product Description: Describes the research and paleontological investigation that led to the identification and classification of the dinosaur Seismosaurus. |
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By J. Lynett Gillette
Dial Hardcover (40 pages; 1)
| List Price: $14.99* Lowest New Price: $28.50* Lowest Used Price: $0.01* *(As of 06:55 Pacific 13 Mar 2010 More Info)
Click Here | Product Description: The first authorized account of one of the most exciting fossil finds in decades--the 1985 discovery of Seismosaurus, the world's longest dinosaur. Written by a paleontologist who has been a part of the excavation since the first day of digging. Features 30 full-color photos from the dig. |
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By Gnidovec Dale M.
Ohio Academy of Science Released: 2005-07-28 Digital (3 pages)
| List Price: $5.95* Lowest New Price: $5.95* Available for download now* *(As of 06:55 Pacific 13 Mar 2010 More Info)
Click Here | Product Description: This digital document is an article from The Ohio Journal of Science, published by Ohio Academy of Science on April 1, 2000. The length of the article is 811 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
Citation Details Title: Seismosaurus: The Earth Shaker.(Review) (book review) Author: Gnidovec Dale M. Publication: The Ohio Journal of Science (Refereed) Date: April 1, 2000 Publisher: Ohio Academy of Science Volume: 100 Issue: 2 Page: 28
Article Type: Book Review
Distributed by Thomson Gale |
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By Rupert Matthews
Heinemann Library Paperback (32 pages; 1)
| List Price: $7.99* Lowest New Price: $5.65* Lowest Used Price: $3.83* Usually ships in 24 hours* *(As of 06:55 Pacific 13 Mar 2010 More Info)
Click Here | Product Description:
Describes what has been learned about the size, behavior, and surroundings of the long-extinct dinosaur known as seismosaurus.
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By Elizabeth J. Sandell & Howard Schroeder
Bancroft-Sage Publishing Paperback (31 pages; 1)
| List Price: $7.95* Lowest New Price: $15.52* Lowest Used Price: $0.75* *(As of 06:55 Pacific 13 Mar 2010 More Info)
Click Here | Product Description: Describes the discovery of fossilized remains of the largest dinosaur yet known, what has been learned so far from the remains, and what we currently believe about the dinosaurs in general. |
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Bancroft Sage Pub Paperback
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By David D./ Hallett, Mark (Ilt) Gillette
Columbia Univ Pr 01/1//1994 Paperback
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By David D. Gillette
Columbia University Press Paperback
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