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Hadrosaurus
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Arguably
nomen dubium |
| Some scientists consider this a nomen dubium - a scientific name of unknown or doubtful application |
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Superfamily |
Hadrosauroidea |
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Hadrosaurus was a herbivore (plant-eater) that lived in North America
during the Cretaceous period
between about 80 and 75 million years ago.
An adult Hadrosaurus has been estimated to be about 30 feet (9.1 meters)
long and weigh around 7 tons. Like other duck-billed dinosaurs, Hadrosaurus is
believed to have generally been bipedal, but could walk on 4 limbs when feeding.
The story of the discovery of Hadrosaurus is quite interesting. The first
fossilized
bones of the animal were discovered by
John Estaugh Hopkins in 1838 near Haddonfield,
New Jersey,
who then displayed them in his home.
These bones were seen by William Parker Foulke in 1858, who returned to the
excavation site (now a national historic landmark - the
"Hadrosaurus Foulkii Leidy Site") and found additional bones
in conjunction with a paleontologist, Joseph Leidy. Leidy subsequently named
the species Hadrosaurus foulkii in honor of his collaborator.
Leidy wrote a description of the Hadrosaurus, complete with illustrations, in 1860,
but the American Civil War delayed publication until 1865. Leidy, contrary to prevailing
views at the time, correctly reconstructed the skeleton as bipedal, and a complete
the skeleton was reconstructed in this form in 1868 - the first mounted dinosaur
skeleton.
It should be noted however, that only one skeleton of Hadrosaurus has ever been found,
and this specimen lacks a skull (among other bones). Reconstructions of the animal
are therefore usually done using skulls of related species. Because of the lack of
specimens, which makes it difficult to perform comparisons with other species,
many scientists consider Hadrosaurus to be a "nomen dubium" - a dubious name.
Hadrosaurus was a herbivore (plant-eater) that lived from 80 to 75 million years ago
Related Information & Resources
See Also
Hadrosaurus Facts
Here is a summary of some of the key facts about Hadrosaurus:
- Hadrosaurus was a genus of dinosaur. Hadrosaurus is considered by some to be a "nomen dubium" (a scientific name of unknown or doubtful application) - because only a few fossils have been found (one very incomplete skeleton missing a skull and many other bones), and, as a result, it is impossible to compare it to its relatives for classification purposes.
- "Hadrosaurus" means "sturdy lizard".
- Hadrosaurus was a member of the Ornithischia ("bird-hipped") order of dinosaurs. What this means, is that although Hadrosaurus was not closely related to birds, it did have similarly shaped pelvic bones.
- Hadrosaurus was a Hadrosaur (usually known as "duck-billed dinosaur") - a member of a group of related herbivorous (plant-eating) dinosaurs that were very successful in the Cretaceous period.
- Hadrosaurus lived between about 80 million years ago and 75 million years ago, during the late Cretaceous period.
- Hadrosaurus lived in North America.
- Hadrosaurus was a herbivore (plant-eater).
- Hadrosaurus was about 30 feet (9.1 meters) long.
- Hadrosaurus weighed about 7 tons.
- Hadrosaurus is the official state dinosaur of New Jersey.
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Hadrosaurus Books
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 Rob Shone
PowerKids Press
Released: September 1st, 2009
Library Binding (32 pages)
 | Lowest New Price: $28.50*
Usually ships within 2 to 4 weeks.*
*(As of 14:04 Pacific 16 Apr 2021 More Info)
Click Here | Description:
Hadrosaurus: The Duck-Billed Dinosaur (Graphic Dinosaurs (Library))- Manufacturer: PowerKids Press
- Brand: PowerKids Press
- ISBN: 1435885910
- EAN: 9781435885912
Details:- Product Category: Library Binding
- Format: Illustrated
- Edition: Illustrated
- Number of Pages: 32
- Author: Rob Shone
- Publication Date: September 1st, 2009
- Release Date: September 1st, 2009
Physical Description:- Size: 11.0 Inches by 9.1 Inches by 0.3 Inches
- Weight: 0.9 Pounds
Click here for more information |
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By Leigh Rockwood
PowerKids Press
Released: August 15th, 2011
Library Binding (24 pages)
 | Lowest New Price: $23.60*
Temporarily out of stock. Order now and we'll deliver when available. We'll e-mail you with an estimated delivery date as soon as we have more information. Your account will only be charged when we ship the item.*
*(As of 14:04 Pacific 16 Apr 2021 More Info)
Click Here | Description:
Hadrosaurus (Dinosaurs Ruled!)- Manufacturer: PowerKids Press
- Brand: PowerKids Press
- ISBN: 144884973X
- EAN: 9781448849734
Details:- Product Category: Library Binding
- Edition: 1
- Number of Pages: 24
- Author: Leigh Rockwood
- Publication Date: August 15th, 2011
- Release Date: August 15th, 2011
Physical Description:- Size: 9.1 Inches by 9.1 Inches by 0.3 Inches
- Weight: 0.65 Pounds
Features:- Used Book in Good Condition
Click here for more information |
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By Darlene Stille
Rourke Publishing (FL)
Released: September 1st, 2006
Library Binding (24 pages)
 | Lowest Used Price: $29.27*
In Stock.*
*(As of 14:04 Pacific 16 Apr 2021 More Info)
Click Here | Description:
Hadrosaurus (North American Dinosaurs)- Manufacturer: Rourke Publishing (FL)
- Brand: Rourke Publishing (FL)
- ISBN: 1600442528
- EAN: 9781600442520
Details:- Product Category: Library Binding
- Format: Illustrated
- Edition: Illustrated
- Number of Pages: 24
- Author: Darlene Stille
- Publication Date: September 1st, 2006
- Release Date: September 1st, 2006
Physical Description:- Size: 10.32 Inches by 7.8 Inches by 0.29 Inches
- Weight: 0.57 Pounds
Features:- Used Book in Good Condition
Click here for more information |
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By CAMILLE JENKINS
Independently published
Released: September 23rd, 2020
Paperback (58 pages)
 | Lowest New Price: $5.99*
In Stock.*
*(As of 14:04 Pacific 16 Apr 2021 More Info)
Click Here | Description:
Hadrosaurus Coloring Book- Manufacturer: Independently published
- EAN: 9798689621234
Details:- Paperback
- Number of Pages: 58
- Author: CAMILLE JENKINS
- Publication Date: September 23rd, 2020
- Release Date: September 23rd, 2020
Physical Description:- Size: 11.0 Inches by 8.5 Inches by 0.14 Inches
Click here for more information |
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By Nice and Simple Books
Independently published
Released: February 19th, 2020
Paperback (105 pages)
 | Lowest New Price: $6.00*
In Stock.*
*(As of 14:04 Pacific 16 Apr 2021 More Info)
Click Here | Description:
Hadrosaurus Notebook: Dinosaur-themed college ruled journal- Manufacturer: Independently published
- EAN: 9798615713828
Details:- Paperback
- Number of Pages: 105
- Author: Nice and Simple Books
- Publication Date: February 19th, 2020
- Release Date: February 19th, 2020
Physical Description:- Size: 11.0 Inches by 8.5 Inches by 0.24 Inches
Click here for more information |
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Hadrosaurus Toys
Here are some toys/games 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.
Wini2342ckey
 | Lowest New Price: $18.99*
In Stock.*
*(As of 14:04 Pacific 16 Apr 2021 More Info)
Click Here | Description:
Wini2342ckey Dinosaur Vinyl Wall Decals - Personalized Hadrosaurus for Boy's Room, Playroom Decoration- Christmas Decor Sticker Gift- Manufacturer: Rui2h1
- Brand: Wini2342ckey
- EAN: 5062974387841
- PartNumber: QT1126Rui-866
Physical Description:Features:- Made of durable PVC, Non-toxic, environmental protection.
- Safe and removable,easy to peel and stick.
- Color: please contact us if you want other color,if we never receive your message, you will get product as picture showed online.
- Can be applied to any smooth,clean and dry surface,such as glass door, window pane, ceramic tiles in kitchen or bathroom, nursery, kid room, bedroom.
- Our Home Decor Stickers will give your kitchen / Home wall / Door a new elegance and warmth in decor.This decal is a perfect gift for friend or family who enjoy decorating their homes.
Click here for more information |
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![[Offprint]: Descriptions of New Fossil Mollusca, found with the bones of Hadrosaurus Foulkii, in the Cretaceous Formation at Haddonfield, New Jersey](https://m.media-amazon.com/images/I/51hTWLyQRPL._SL160_.jpg)
