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Hadrosaurus
| Scientific Classification |
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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 Leigh Rockwood
PowerKids Press
Paperback (24 pages)
 | List Price: $8.25*
Lowest New Price: $2.90*
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Usually ships in 1 to 2 months*
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Click Here | Product Description:
Hadrosaurs are known as duck-billed dinosaurs because of their long flattened snouts. This book explores what scientists know about these plant-eating dinosaurs and how this knowledge has changed over time. Young dinosaur enthusiasts will find out the latest information about where these dinosaurs lived, what they ate, and what ate them. They will learn about the purpose of the duck-shaped bills and their hundreds of sharp teeth, too. All this information is presented in an age-appropriate and friendly way and is supported by the full-color illustrations and photographs. |
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By Rob Shone
Powerkids Pr
Library Binding (32 pages)
 | List Price: $28.50*
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Click Here | Product Description:
A fast-paced narrative in graphic novel style format will grab your readers' attention as they learn all about the amazing Hadrosaurus. The fact-filled front and back matter is enhanced by vivid color and exciting photos and graphics. |
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By Anastasia Suen
Bridges
Released: 2019-08-11
Paperback (32 pages)
 | List Price: $9.25*
Lowest New Price: $9.25*
Not yet published*
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Click Here | Product Description:
Let's explore the exciting world of paleontology! Did you know that a dinnertime story led to the discovery of a dinosaur? And that strange old bones dug up behind a house became the first North American dinosaur ever seen by the public? This book is about the discovery of Hadrosaurus, including information about the dinosaur's appearance, movement, and diet before it became extinct. This series introduces readers to the study of dinosaurs. Each book covers what scientists know and what they are still working to learn about these prehistoric beasts. Each book includes a glossary, comprehension questions, and an extension activity. |
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By April Jones Prince
Cartwheel Books
Released: 2018-01-30
Hardcover (14 pages)
 | List Price: $8.99*
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Click Here | Product Description:
Long-necked dinosaurs were huge and heavy.
They munched the tallest trees.
They filled their big bellies.
These dinosaurs ate plants all day.
Every dino has a name.
No two dinos were the same!
Meet the long-necks, flyers, boneheads, duckbills, swimmers, armored, horned, plated, and sharp-toothed creatures of prehistoric times in this oversized board book with 101 creatures for kids to name and sound out! With bite-size information that's perfect for this young age, phonetic spellings of each creature, and an interactive refrain, the first book in this young nonfiction series is sure to be a hit! |
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By Dee Kyte
Independently published
Paperback (207 pages)
 | List Price: $28.99*
Lowest New Price: $28.99*
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Click Here | Product Description:
My Dinosaur Alphabet is a fun and imaginative way for young children to learn their alphabet and some new words. Colourful illustrations make this book fun to read and learn. Series 1 (A to H) follows 8 dinosaurs, as they go on an adventure to find things beginning with their initial letters, and they ask for the reader's help in doing this. We make friends with Adam the Allosaurus, Bianca the Brachiosaurus, Carley the Compsognathus, Daniel the Diplodocus, Esmerelda the Edmontosaurus, Felicity the Fabrosaurus, George the Gallimimus and Harry the Hadrosaurus. This book is aimed at young children from 2 to 6 years of age, including young ESL readers. It is written by an author who is a qualified teacher of English as a second language, so is in a format that is easy to read and understand. Your child will enjoy 'stomp, stomp, stomping along' with the different dinosaurs to see what they can find. My Dinosaur Alphabet i to z will be released as individual ebooks over the coming months. |
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By Dee Kyte
Released: 2019-03-26
Kindle Edition
 | | Product Description:
H is for... Harry the Hadrosaurus is the 8th book in the My Dinosaur Alphabet series. It tells the story of the adventures of Harry, as he goes in search of things beginning with the letter h, and he asks for the reader's help in doing this. Colourful illustrations make this book fun to read and learn. The books are an interesting way to help young readers learn their alphabet and some new words.
The first books in this series have all featured on the best sellers' list in the Early Learning category for new releases.
The author is a qualified teacher of English as a second language, so the books are written in a simple format that is suitable for young readers from 2 to 6 years of age, including ESL learners. |
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By Darlene R. Stille
Rourke Pub Group
Paperback (24 pages)
 | List Price: $7.95*
Lowest Used Price: $2.50*
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Click Here | Product Description:
Fierce prehistoric dinosaurs are an all-time favorite among reluctant readers. Kids will have fun reading and learning about dinosaurs that once roamed the North American continent. Filled with engaging illustrations and archeology-like photographs, these books will educate as they entertain the reader. A big hit with kids of all ages. |
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By Isaac LEA
(Jour. Acad. Nat. Sci
Paperback
![[Offprint]: Descriptions of New Fossil Mollusca, found with the bones of Hadrosaurus Foulkii, in the Cretaceous Formation at Haddonfield, New Jersey](https://images-na.ssl-images-amazon.com/images/I/51hTWLyQRPL._SL160_.jpg) | |
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By John C. Smarr
Montgomerys Bank Holiday Publishers
Released: 2016-05-05
Kindle Edition (167 pages)
 | | Product Description:
In a laboratory, in the hills of California a discovery has been made...a discovery which will change the world as we know it. A basin lost to time has been discovered in the Amazon jungle, rumored to be filled with plants and animals from pre-history.
Dinosaurs- Alive, Today.
Now, BioPharm, a Bio-engineering company that makes pharmaceuticals out of the chemical properties of plants and animals alike has put together a safari to take advantage of the rich resources unknown to modern science.
An expedition was set and a safari began, with a group of individuals; who all went in with different motives...but leaving may be a different story. |
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By Journals4Fun
Independently published
Paperback (200 pages)
 | List Price: $8.97*
Lowest New Price: $8.97*
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Click Here | Product Description:
A notebook for little dino lovers! Get your thoughts down on paper with this Dinosaur Composition book! Great for students in elementary school and middle school, or for dinosaur lovers who need a place to write. 100 sheets (200 pages) in standard composition book size (9 3/4" by 7 1/2"). Wide-ruled paper. Cute, baby Hadrosaur design. |
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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.
LoveInUSA
Toy
 | List Price: $23.99*
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Click Here | - ❤️ Material: High-quality natural wood, safe and nontoxic, no smell. No glue or tools required. Safety and environmental protection.
- ❤️ Features: This unique model toy can be stained, Lacquered, painted, or left as is.This is no ordinary puzzle craft kit! It helps building your kids' creative minds.
- ❤️Gift for: Collect them all,it's very interesting and simple, Good choice for Christmas, Birthdays, Grand kids, Boys and Girls.Also a great gift for friends as a home decoration.A great way to spend time with your kids while building the model toy together.
Product Description:
Features:
Safe and nontoxic, no smell
This unique model toy can be stained, Lacquered, painted, or left as is.
❤Significance:
Assemble the wood craft kit step by step according to the English Instruction with Illustration. Not only that kids will get fun with it, but also learn hand-eye coordination,fine motor skills and problem-solving skills.
it brings unforgettable times of working together on projects between you and your kids. A super awesome bond for family ties. It's time to get closer with your kids!
❤Material: Natural wood
About Brand
New brand:LoveInUSA
Our brand purpose: CUSTOMER FIRST
30-Day Money Back Guarentee.100% Secure Shopping
Please select LoveInUSA seller--Thank you!
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Collectible Wildlife Gifts
Toy (Educational)
 | Lowest New Price: $5.89*
Usually ships in 24 hours*
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Click Here | - Appreciate our HADROSAURUS DINOSAUR one-piece skeleton for its scientific accuracy. This is an excellent affordable educational gift for young and old who are curious about extinct animals.
- Educational
- Perfect for a gift!
Product Description:
Appreciate our HADROSAURUS DINOSAUR one-piece skeleton for its scientific accuracy. This is an excellent affordable educational gift for young and old who are curious about extinct animals. |
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Nuanmu
Toy
 | Lowest New Price: $5.99*
Usually ships in 24 hours*
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Click Here | - Something new and unique for little dinosaur lovers. There are all together 4Pcs to choose from.
- Safe and delicate design. Each dinosaur action figures is unique and hand painted for kids and adult to play with.
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Lindberg
Toy
 | Lowest New Price: $24.99*
Usually ships in 1-2 business days*
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Click Here | - Over 7 Inches Long
- Super Detailed Model Kit
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Jurassic World Toys
Released: 2018-05-17
Multicolor Toy
 | List Price: $14.99*
Lowest New Price: $19.89*
Usually ships in 24 hours*
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Click Here | - Get ready for thrilling action and adventure with Jurassic World!
- Play out movie action scenes with signature attack moves like chomping, biting and head butting
- Choose from Roarivores Triceratops, Roarivores Baryonyx, Roarivores Metriacanthosaurus and Roarivores Allosaurus
Product Description:
Get ready for thrilling action and adventure with Jurassic World! Roarivores dinosaur action figures are inspired by the movie and feature push button sound activation and signature attack moves iconic to their respective species. Play out movie action scenes with signature attack moves like chomping, biting and head butting. Figures also include articulated arms and legs, realistic sculpting and authentic decoration. Choose from Roarivores Triceratops, Roarivores Baryonyx, Roarivores Metriacanthosaurus and Roarivores Allosaurus. Each sold separately, subject to availability. Colors and decorations may vary. |
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Tonka Kenner
Toy
 | Lowest New Price: $29.99*
Usually ships in 1-2 business days*
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Click Here | - made in 1993
- One per order
- Great for collectors & hobbyists
Product Description:
Set of 2 1993 (dated) Jurassic Park diecast metal dinosaur figurines,produced by Kenner as a tie-in to the movie. These were a limited edition. Included are a ANKYLOSAURUS AND HADROSAURUS, both dated on the bottom (this can be seen through the packaging), as well as 2 movie collector trading cards. Figures are nicely painted and show great detail |
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Jurassic World Toys
Released: 2018-04-16
Gray Toy
![Jurassic World Real Feel Mosasaurus [Amazon Exclusive]](https://images-na.ssl-images-amazon.com/images/I/41SqiTdpsWL._SL160_.jpg) | List Price: $29.99*
Lowest New Price: $29.99*
Lowest Used Price: $27.89*
Usually ships in 24 hours*
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Click Here | - Get ready for thrilling action and adventure with Jurassic World!
- Mosasaurus will thrill fans with its massive size and movie-inspired design!
- Colors and decorations may vary.
Product Description:
Get ready for thrilling action and adventure with Jurassic World! Mosasaurus, the colossal swimming creature, is back again and makes a bigger splash than ever in the film! This action figure is inspired by the movie and comes in a massive size that will thrill fans! Mosasaurus features authentic textured skin, realistic sculpting and articulation that makes this colossal creature come to life! Colors and decorations may vary. |
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Jurassic World Toys
Released: 2018-04-16
Brown Toy
 | List Price: $54.99*
Lowest New Price: $50.98*
Lowest Used Price: $49.97*
Usually ships in 24 hours*
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Click Here | - Get ready for thrilling action and adventure with Jurassic World!
- Large figure features articulated arms and legs, and extra-wide jaws that can open and close
- To release the dinosaurs, open the door on the belly
Product Description:
Get ready for thrilling action and adventure with Jurassic World! Watch out! At approximately three feet long, this Super Colossal Tyrannosaurus Rex is based on the iconic Tyrannosaurus Rex from Jurassic World and features realistic detail and decoration. And with articulated arms and legs, and extra-wide jaws that can open and close, this massive menace can swallow up to 20 mini action figure dinosaurs whole (sold separately). To release the dinosaurs, open the door on the belly. Run NOW! Colors and decorations may vary. |
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Jurassic World Toys
Released: 2018-05-17
Multicolor Toy
![Jurassic World Action Attack Suchomimus [Amazon Exclusive]](https://images-na.ssl-images-amazon.com/images/I/41BMt-6v%2BbL._SL160_.jpg) | List Price: $19.99*
Lowest New Price: $18.00*
Usually ships in 24 hours*
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Click Here | - Get ready for thrilling action and adventure with Jurassic World
- Realistic sculpting and authentic decoration make these Action Attack dinosaur figures come to life
- Action Attack Stegosaurus activates by pressing a spine plate to trigger the tail swipe
Product Description:
Get ready for thrilling action and adventure with Jurassic World! These Action Attack dinosaur figures capture the ultimate movie action with their unique action-attack features! Add realistic sculpting and authentic decoration, and these Action Attack dinosaurs come to life ready for dinosaur action! Choose from Action Attack Carnotaurus (press button to make the head strike forward and jaws chomp) and Action Attack Stegosaurus (press a spine plate to trigger the tail swipe). Each sold separately, subject to availability. Colors and decorations may vary. |
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Melissa & Doug
Released: 2007-03-13
Multi Toy
 | List Price: $9.99*
Lowest New Price: $8.99*
Usually ships in 24 hours*
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Click Here | - Includes pteranodon, ankylosaurus, apatosaurus, T-Rex, triceratops, stegosaurus, and hadrosaurus pieces
- 7-piece puzzle and picture-under-pieces puzzle board
- 2+ years
Product Description:
This extra thick wooden puzzle includes seven easy-grasp, chunky dinosaur pieces with a full-color, matching picture underneath. The dino pieces stand upright for pretend play. Encourages eye-hand, fine motor and creative expression skills. |
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