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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 Rob Shone
PowerKids Press
Released: August 30th, 2009
Library Binding (32 pages)
 | Lowest New Price: $30.27*
In Stock.*
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Click Here | Description:
Hadrosaurus: The Duck-billed Dinosaur (Graphic Dinosaurs)- Manufacturer: Powerkids Pr
- 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: August 30th, 2009
- Release Date: August 30th, 2009
Physical Description:- Size: 10.75 Inches by 9.0 Inches by 0.25 Inches
- Weight: 0.9 Pounds
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By Leigh Rockwood
PowerKids Press
Released: August 30th, 2011
Paperback (24 pages)
 | Lowest New Price: $13.45*
In stock. Usually ships within 3 to 4 days.*
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Click Here | Description:
Hadrosaurus (Dinosaurs Ruled!)- Manufacturer: Powerkids Pr
- Brand: PowerKids Press
- ISBN: 1448850967
- EAN: 9781448850969
Details:- Paperback
- Number of Pages: 24
- Author: Leigh Rockwood
- Publication Date: August 30th, 2011
- Release Date: August 30th, 2011
Physical Description:- Size: 8.75 Inches by 5.75 Inches by 0.25 Inches
- Weight: 0.4 Pounds
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By Darlene R. Stille
Rourke Pub Group
Paperback (24 pages)
 | List Price: $7.95*
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Hadrosaurus- Manufacturer: Rourke Pub Group
- ISBN: 1600443346
- EAN: 9781600443343
Details:- Paperback
- Number of Pages: 24
- Author: Darlene R. Stille
Physical Description:- Size: 10.5 Inches by 7.75 Inches by 0.25 Inches
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By CAMILLE JENKINS
Independently published
Released: September 23rd, 2020
Paperback (58 pages)
 | Lowest New Price: $7.14*
In Stock.*
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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
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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.
D DRONRCBRO
 | Lowest New Price: $29.99*
In Stock.*
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Click Here | Description:
D DRONRCBRO Jumbo Dinosaur Toys, Large Soft Realistic Dinosaurs Figures, Dinosaur Party Favors for Kids and Toddlers, Including T-Rex Triceratops Spinosaurus, Birthday Gifts for Boys 3 4 5 6 7 8- Manufacturer: D DRONRCBRO
- Brand: D DRONRCBRO
- Model: DR
- PartNumber: DR-US
Features:- 6 Pieces Jumbo Dinosaur Toys for Kids: There are 6pcs of the most popular dinosaurs, including Tyrannosaurus Rex, Triceratops, Spinosaurus, Brachiosaurus, Giganotosaurus and Pterodactyl. Let your kids to explore the world of dinosaurs and bring fun time for the kids.
- Realistic Appearance and Details: From models, textures to colors, We are committed to restoring the most realistic appearance of dinosaurs. Use advanced washable pigments to make the colors more realistic and will not fade. Nice detailing making it perfect for educational displays or in everyday play.
- Durable and Safe Material: Compared to other hard dinosaur toys, our dinosaur toys sets for boys are made of soft material, without sharp edges and corners, so do not have to worry about scratching your skin.The interior is filled with high-quality cotton, soft and comfortable with high resilience. Bendable and not easy to break, it can withstand repeated rough play by children.
- Explore The Mysteries of Dinosaurs：Parents can tell kids about the history of dinosaurs through these jumbo dinosaur toys, allowing your kids to learn the names and interesting history of different dinosaurs. Engage children in the process of playing with the prehistoric legendary creatures to stimulate children's imagination, and lead children to explore the most realistic Dinosaur world! Just Right for a School / Dinosaur Science Project or Report.
- Perfect Gift for Dinosaur Lovers: Dinosaur toys with beautifully detailed and realistic appearance,perfect for playing with friends and family. Perfect as party favors, Christmas gifts, New Year gifts, birthday party games, party decorations, learning toys or rewards.Perfect hoilday birthday gifts for 3 4 5 6 7 8year old boys and girls.
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Schleich
Multi Accessory
 | List Price: $14.99*
Lowest New Price: $10.99*
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Schleich Dinosaurs, Dinosaur Toys for Boys and Girls Ages 4 and Above, Realistic Ankylosaurus Toy Figure- Manufacturer: Schleich
- Brand: Schleich
- Model: 15023
- EAN: 4059433011844
- PartNumber: 15023
Details:- Product Category: Accessory
Physical Description:- Size: 4.2 Inches by 5.5 Inches by 5.5 Inches
- Weight: 0.31 Pounds
- Color: Multi
Features:- DETAILED & REALISTIC. Crafted with precision and authentic detail to create a lifelike toy that teaches and inspires toddlers and kids of every age; helps introduce children to animals. From the first sketch to the intricate finishing touches, we see value in every detail.
- HEALTHY IMAGINATIVE PLAY. The Ankylosaurus from Schleich is carefully designed to inspire safe and creative pretend play for children as both a single toy or part of a larger collection.
- PART OF A GROWING PLAY WORLD. The Ankylosaurus is part of the Dinosaurs collection of figurines and playsets from Schleich. Great for gifting, this figurine can stand alone or fit into a larger, modular play world. The Dinosaurs Dino Set with Cave is an excellent accompaniment.
- BUILT TO LAST. As an 85-year-old German toy company, we are committed to manufacturing realistic toys with the highest standard of quality and safety for years of durable play and collectability. All products and the materials used meet or exceed the strictest applicable national and international toy safety requirements.
- EXPERT APPROVED. “Schleich playsets and figurines inspire kids to play imaginatively: an essential part of healthy childhood development so often overlooked in today’s fast-paced world.” - Dr. Sandra Stone, open-ended play expert
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PREXTEX
Multi_color Unknown Binding
 | List Price: $19.99*
Lowest New Price: $17.99*
In Stock.*
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PREXTEX Dinosaur Toys for Kids 3-5 (12 Plastic Dinosaur Figures & Interactive Dinosaur Book with Sound) - Toddler Dinosaur Toy, Dinosaur Gift Set for Toddlers, Dinosaurs for Kids 3-5 (Boys & Girls)- Manufacturer: Prextex
- Brand: PREXTEX
- Model: RXZER23
- UPC: 810031583980
- EAN: 0810031583980
- PartNumber: PR83980
Details:- Product Category: Unknown Binding
Physical Description:- Size: 5.118110231 Inches by 5.118110231 Inches by 5.118110231 Inches
- Weight: 0.625 Pounds
- Color: Multi_color
Features:- 12 REALISTIC DINOSAURS - This set of toy dinosaurs for kids 3-5 includes 12 dinosaur figures - t-rex, spinosaurus, stegosaurus, diplodocus, apatosaurus, triceratops, ankylosaurus, monoclonius, allosaurus, baryonyx, corythosaurus, and pachycephalosaurus.
- SOUND BOOK WITH DINOSAUR NAMES & SOUNDS - Discover and learn the names and rumbling sounds of each of the 12 dinosaurs featured in this book by pressing the button on the right side that corresponds to the dinosaur pictured.
- FUN & EDUCATIONAL - This interactive sound book is fun to play with while providing knowledge and fun facts about these prehistoric beasts.
- CHILD-SAFE - Made of non-toxic great-quality plastic material and features realistic detailing, these dinosaur toys are guaranteed safe for your children for hours of learning and development as well as imaginative play and fun.
- BEAUTIFUL PACKAGING FOR GIFTING - This set of dinosaur toys for kids 3-5 is nicely packaged in a beautifully designed box that's perfect for wrapping and gift-giving.
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EOIVSH
Pterosaur & Allosaurus Toy
 | Lowest New Price: $17.99*
In Stock.*
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2 Pack Dinosaur Toy Pterosaur & Allosaurus, Realistic Educational Plastic Dinosaur Figures, Plastic Wildlife Animal Model Figurines for Funny Collection, Birthday Gifts, Party Favor- Manufacturer: EOIVSH
- Brand: EOIVSH
- UPC: 760385073623
- EAN: 0760385073623
- PartNumber: 028-LargeDinosaur2Pack
Details:Physical Description:- Color: Pterosaur & Allosaurus
Features:- 🦖Dinosaur Toys for Kids: Includes 2 dinosaur figures ( Pterosaur Figure & Allosaurus Figure). The size of pterosaur toy is 6”*2.7”*3.1” and the allosaurus toy is 10”*2.4”*3.5”, These dinosaur model toys are designed large enough to fit for children's hands to hold and play, It's a amazing gift and educational toys for Children 3 years-old and up
- 🦖Vivid Details & Hand Painted: As dinosaur toys for kids, Each dinosaur figure is finely sculpted and hand painted by experts, highly detailed for a realistic appearance.
- 🦖Educational Dinosaur Toys Playset: With true-to-life details, active poses, these dinosaur figurines can easily help capture kids' attention and spark imaginative play, Great for education purposes, party favors, school projects, landscape scenes, baby shower and decoration
- 🦖Best Gift for Kids&Children: Our dinosaur toys are designed for children to learn and enrich dinosaur characters, help children to discover the wonderful dinosaur world through these animals figures. It's also perfect for dinosaur themed cake toppers, jurassic themed party favor, and bathtub toy, Perfect gift for teachers, children and dinosaur lovers.
- 🦖High Quality: As for children's toy, safe is always the first! EOIVSH dinosaur figures set are made of high quality PVC, non-toxic and odorless, thoroughly safety tested to safeguard your child's health. If you have any problem, feel free to message us through “contact sellers” , we will solve your problem as soon as possible!
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RCOMG
 | Lowest New Price: $17.99*
In Stock.*
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Click Here | Description:
RCOMG Dinosaur Figure Mosasaurus Toy, Realistic Ancient Deep Sea Monster Toy Educational Prehistoric Swimming Ocean Dinosaur Toy for Model Collection, Cake Topper, Birthday Xmas Gift- Manufacturer: RCOMG
- Brand: RCOMG
- UPC: 738630369593
- EAN: 0738630369593
- PartNumber: Dinosaur001-Mosasaurus
Physical Description:- Size: 2.01 Inches by 13.4 Inches by 5.0 Inches
- Color: Mosasaurus
Features:- Realistic Appearance: With exquisite workmanship and perfect details, the dinosaur model is lifelike. This mosasaurus toy great for cake topper, bath toy, pool toy. Spark children's imagination and explore the wonderful deep sea creatures.
- Educational Toy:Through vivid entertainment and interaction, it is easy and pleasant to help children learn more about the prehistoric animal Mosasaur, stimulate and cultivate children's understanding of the natural world
- High Quality: Safe first! our product made of environmental PVC. No tiny removable parts.
- Perfect Collection Gift: Mosasaurus is the largest top predator of the Cretaceous period, the overlord of the ocean in ancient times. Exquisite design and hand paint process, perfect Christmas birthday gift for kids and collector
- Mosasaurus size: 13.4”(L)*5”(W)/34cm(L)*15.5cm(W)
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Jurassic World Toys
Multicolor Toy
 | List Price: $37.99*
Lowest New Price: $19.96*
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Jurassic World Dominion Sound Slashin Therizinosaurus Dinosaur Action Figure Toy with Attack Feature and Sounds- Manufacturer: Mattel
- Brand: Jurassic World Toys
- Model: GWD65
- UPC: 887961938609
- EAN: 0887961938609
- PartNumber: GWD65
Details:Physical Description:- Size: 9.5118 Inches by 13.5512 Inches by 5.1457 Inches
- Weight: 1.212542441 Pounds
- Color: Multicolor
Features:- Jurassic World Dominion brings new dinosaur action and thrills, including this exciting large Sound Slashin' Therizinosaurus action figure.
- Watch out for the HUGE claws that make side-slashing attacks! Hear epic sound effects and experience a lunging action completed with a CHOMP!
- This terrifying dinosaur stars in a critical role in the movie and can play a huge part in at-home storylines, too!
- Download the free Jurassic World Facts app (Android and iOS) and see dinosaur play get REAL! Find the hidden DNA code and scan it with any smart device to initiate Augmented Reality (AR) options. Smart device not included.
- AR lets kids study the dinosaur in the lab with fun visual learning and explore different modes, like thermal and x-ray! Then, take it to the next level and bring dinosaurs into our world through AR -- make the dinosaur appear in any room. RUN!
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Tepsmigo
 | Lowest New Price: $26.99*
In Stock.*
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Click Here | Description:
Tepsmigo Soft Dinosaur Toys for Kids 3-5, Dinosaur Toys for Kids Toddlers - 6Pack Jumbo Dinosaur Toys, Jurassic Dinosaurs T-Rex Velociraptor Triceratops, Perfect Dinosaur Toys for Kids 3-5, 5-7- Manufacturer: TEPSMIGO
- Brand: Tepsmigo
- UPC: 728370640649
- EAN: 0728370640649
- PartNumber: DINO-2022
Physical Description:- Color: Jumbo Dinosaur Set
Features:- JUMBO REALISTIC DINOSAUR FIGURES - This prehistoric play box includes 6Jumbo dinosaur animal figures from 10" -12" nose to tail. They include 2 carnivores：T-Rex, Velociraptor and 4 herbivores: Brachiosaurus, Stegosaurus,Triceratops and Ankylosaurus. They are life-like and great for boys and girls aged 3 year old and up.
- SAFE MATERIAL, BPA-FREE NON-TOXIC DINOSAUR TOYS - Made from soft PVC plastic material, which is BPA-free non-toxic and durable. it’s safe for children to use. All materials are safety-tested and approved for use in children’s toys and meet US toy safety standards.
- REALISTIC LOOK DINOSAUR TOYS - The hand-paint gives it a realistic look, and their vibrant coloring is very nicely detailed with good shadings and can give kids hours of imaginative play. Both for indoor and outdoor use.
- EDUCATIONAL AND FUN DINOSAUR TOYS - TEPSMIGO 6 Pack Jumbo Dinosaurs Set are perfect for providing hours of endless imaginative fun as well as developing growing minds!The dinosaurs' uniquely modeled textures will help spark your child’s curiosity for science. Don’t miss this opportunity for early developmental growth, and consider dinosaur sets that are more than just fun.
- GREAT GIFT FOR BOYS AND GIRLS - 6PCS jumbo dinosaur set toys are perfect for party favors, birthday gift or Christmas gift for boys, girls and Dino Lover. Packed in a cool gift box,this super pack of jumbo T-Rex Velociraptor Triceratops Stegosaurus Brachiosaurus Ankylosaurus will fill any Dinosaur World created in your child's imagination and be a big surprise!
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3 Bees & Me
Multi-color Unknown Binding
 | List Price: $24.99*
Lowest New Price: $14.99*
In Stock.*
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Click Here | Description:
3 Bees & Me Fun Dinosaur Toys for Kids 3-5, 5-7, 8-12 - 12 Large Dino Toy Figures with Storage Box Case - 6 inch Dinosaurs - Dinosaur Toys for Boys, Girls, Toddlers for Imaginative Play- Manufacturer: 3 Bees and Me
- Brand: 3 Bees & Me
- Model: 761780307528
- UPC: 761780307528
- EAN: 0761780307528
- PartNumber: 761780307528
Details:- Product Category: Unknown Binding
Physical Description:- Size: 7.0 Inches by 9.75 Inches by 3.0 Inches
- Weight: 1.2 Pounds
- Color: Multi-color
Features:- Toy Dinosaurs Boys and Girls Love - Searching for a cool birthday party, Christmas or just because gift for that special girl or boy age 3 year old and up? Kids play with this popular dino set for days not just minutes like with some gifts
- Best Value Dinosaur Gift - while most jurassic toy sets just come with the action figures our set comes with a storage box AND fun facts making it a super and affordable value gift; a jurassic toy set you can give with peace of mind.
- Fun and Educational Dinosaur Toys - T-rex, Spinosaurus, Triceratops ... oh my! With 12 of the best big jumbo prehistoric dinasours as well as Names and Fun Facts about each, this real looking dinosaur toy collection pack can ignite your child's love of science and learning.
- Unique Metal Storage Box Makes Play More Fun - unlike other toy playsets that come with just the dinos or a cheap plastic bucket tub that tears our storage carrying case is durable metal which makes play more fun for kids and easy cleanup that Moms like!
- 60-Day 100% Money-Back Gifts Guarantee - our toy dinosaur figure multipack sets are backed by our top sellers risk-free Satisfaction Guarantee. If the little kid it's for doesn't absolutely love our dinosaur figurines we will refund your money.
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