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Pachycephalosaurus
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Pachycephalosaurus was a herbivore (plant-eating) dinosaur that
lived during the late Cretaceous period,
about 76 to 65 million years ago,
in North America.
It was one of the dinosaurs that died out in the Cretaceous-Tertiary
extinction,
65 million years ago.
The name Pachycephalosaurus means "thick-headed lizard",
and describes the creature's most noteworthy feature:
the huge 10 inch (25 centimeter) thick
bone dome on its head. At the rear of the dome were a number of bony knobs,
and the animal's snout also possessed several short bony spikes.
This has led most scientists to conclude that the animal was probably
related to the
Ceratopsians
(which include
Protoceratops,
Psittacosaurus,
Styracosaurus
and
Triceratops),
although unlike most
Ceratopsians,
Pachycephalosaurus is believed to have been bipedal.
It was once thought that Pachycephalosaurus would have used the dome
on its head either to engage in butting contests for mates (similar to
modern big-horned sheep), or to defend against predators. However,
it is now believed that this could not have been the case:
the head bones do not appear to be strong enough for such impacts,
the skulls lack shock absorbing features, and there no evidence of
scars or other damage have been found on
fossilized
Pachycephalosaurus skulls.
Another somewhat unusual feature of Pachycephalosaurus is its teeth.
The animal had very small ridged teeth which would have been
far less capable of chewing tough, fibrous plant material than
other herbivorous dinosaurs of the late Cretaceous. It is therefore
thought that perhaps Pachycephalosaurus lived on a diet of
leaves, seeds, fruit and perhaps insects.
So far, only the skull of Pachycephalosaurus has been discovered.
Scientists estimate that the fully grown creature was 15 feet (4.6 meters) long,
and weighed about 950 pounds (430 kilograms).
They have come up with these figures by examining
the skull and extrapolating the likely size on the creature based on
the head-to-body ratios of its close relatives.
Pachycephalosaurus Timeline:
Pachycephalosaurus was a herbivore (plant-eater) that lived from 76 to 65 million years ago
Related Information & Resources
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See Also
Pachycephalosaurus Facts
Here is a summary of some of the key facts about Pachycephalosaurus:
- Pachycephalosaurus was a genus of dinosaur.
- "Pachycephalosaurus" means "thick-headed lizard". This name was chosen by Barnum Brown and Erich Maren Schlaikjer in 1943.
- Pachycephalosaurus was a member of the Ornithischia ("bird-hipped") order of dinosaurs. What this means, is that although Pachycephalosaurus was not closely related to birds, it did have similarly shaped pelvic bones.
- Pachycephalosaurus was a Pachycephalosaur - a member of a group of related herbivorous (plant-eating) dinosaurs with bony domes on their heads.
- Pachycephalosaurus lived between about 76 million years ago and 65 million years ago, during the late Cretaceous period.
- Pachycephalosaurus was one of the dinosaurs which died out during the Cretaceous-Tertiary mass extinction at the end of the Mesozoic Era.
- Pachycephalosaurus lived in North America.
- Pachycephalosaurus was a herbivore (plant-eater).
- Pachycephalosaurus was about 15 feet (4.6 meters) long.
- Pachycephalosaurus weighed about 950 pounds (430 kilograms).
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Pachycephalosaurus 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, 2011
Library Binding (32 pages)
 | Lowest New Price: $31.82*
Usually ships within 6 to 7 days.*
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Click Here | Description:
Pachycephalosaurus: The Thick-Headed Lizard (Graphic Dinosaurs)- Manufacturer: Powerkids Pr
- Brand: PowerKids Press
- ISBN: 1448852528
- EAN: 9781448852529
Details:- Product Category: Library Binding
- Number of Pages: 32
- Author: Rob Shone
- Publication Date: August 30th, 2011
- Release Date: August 30th, 2011
Physical Description:- Size: 11.25 Inches by 9.5 Inches by 0.25 Inches
- Weight: 0.85 Pounds
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By Enrique Fiesta
Createspace Independent Publishing Platform
Released: January 23rd, 2015
Paperback (54 pages)
 | Lowest New Price: $11.99*
In Stock.*
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Click Here | Description:
Pachycephalosaurus - Thick-Headed Lizard- Manufacturer: CreateSpace Independent Publishing Platform
- Brand: Createspace Independent Publishing Platform
- ISBN: 1507686900
- EAN: 9781507686904
- PartNumber: colour illustrations
Details:- Paperback
- Number of Pages: 54
- Authors: Enrique Fiesta, John Davidson
- Publication Date: January 23rd, 2015
- Release Date: January 23rd, 2015
Physical Description:- Size: 9.0 Inches by 6.0 Inches by 0.15 Inches
- Weight: 0.19 Pounds
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By Janet Riehecky
The Childs World Inc
Library Binding
 | List Price: $21.36*
Lowest Used Price: $7.88*
In Stock.*
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Click Here | Description:
Pachycephalosaurus : Dinosaurs Series- Manufacturer: The Childs World Inc
- ISBN: 0895656329
- EAN: 9780895656322
Details:- Product Category: Library Binding
- Author: Janet Riehecky
Physical Description:- Size: 10.5 Inches by 8.5 Inches by 0.5 Inches
- Weight: 7.2 Pounds
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By Fabio Marco
Blackbirch
Released: April 6th, 2007
Hardcover (32 pages)
 | List Price: $25.65*
Lowest Used Price: $9.91*
In Stock.*
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Pachycephalosaurus (Dinosaur Profiles)- Manufacturer: Blackbirch
- ISBN: 1410307417
- EAN: 9781410307415
Details:- Hardcover
- Number of Pages: 32
- Authors: Fabio Marco, Dalla Vecchia
- Publication Date: April 6th, 2007
- Release Date: April 6th, 2007
Physical Description:- Size: 9.0 Inches by 8.5 Inches by 0.25 Inches
- Weight: 0.6 Pounds
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By Frances Swann
Brand: Rourke Pub Group
Library Binding
 | Lowest Used Price: $32.50*
In Stock.*
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Pachycephalosaurus (Dinosaur Library)- Manufacturer: Rourke Pub Group
- Brand: Brand: Rourke Pub Group
- ISBN: 0865925267
- EAN: 9780865925267
Details:- Product Category: Library Binding
- Author: Frances Swann
Physical Description:- Size: 10.75 Inches by 7.75 Inches by 0.5 Inches
- Weight: 1.01 Pounds
Features:- Used Book in Good Condition
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By Daniel Cohen
Brand: Bridgestone Books
Released: January 1st, 2004
Library Binding (24 pages)
 | List Price: $23.32*
Lowest Used Price: $5.97*
In Stock.*
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Pachycephalosaurus (Discovering Dinosaurs)- Manufacturer: Capstone Press
- Brand: Brand: Bridgestone Books
- ISBN: 0736825231
- EAN: 9780736825238
Details:- Product Category: Library Binding
- Number of Pages: 24
- Author: Daniel Cohen
- Publication Date: January 1st, 2004
- Release Date: January 1st, 2004
Physical Description:- Size: 7.99999999184 Inches by 8.12598424368 Inches by 0.31102362173 Inches
- Weight: 0.45 Pounds
Features:- Used Book in Good Condition
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By Michael P. Goecke
Buddy Books
Released: January 1st, 2007
Library Binding (32 pages)
 | List Price: $27.07*
Lowest New Price: $18.00*
In Stock.*
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Pachycephalosaurus (Dinosaurs Set 4)- Manufacturer: Buddy Books
- ISBN: 1599286998
- EAN: 9781599286990
Details:- Product Category: Library Binding
- Number of Pages: 32
- Author: Michael P. Goecke
- Publication Date: January 1st, 2007
- Release Date: January 1st, 2007
Physical Description:- Size: 8.5 Inches by 7.5 Inches by 0.5 Inches
- Weight: 0.51 Pounds
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Pachycephalosaurus 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.
Schleich
Multi Accessory
 | Lowest New Price: $19.99*
In Stock.*
*(As of 19:17 Pacific 25 Jan 2023 More Info)
Click Here | Description:
Schleich Dinosaurs, Realistic Dinosaur Toys for Boys and Girls Pachycephalosaurus Toy Figurine, Ages 4+- Manufacturer: Schleich
- Brand: Schleich
- Model: 15024
- EAN: 4059433276878
- PartNumber: 15024
Details:- Product Category: Accessory
Physical Description:- Size: 4.3 Inches by 8.5 Inches by 8.5 Inches
- Weight: 0.25 Pounds
- Color: Multi
Features:- DETAILED & REALISTIC. Crafted with precision and authentic detail to create a lifelike toy that teaches and inspires toddlers and kids; helps introduce children to animals. From the first sketch to the intricate finishing touches, we see value in every detail.
- HEALTHY IMAGINATIVE PLAY. The Pachycephalosaurus 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 Pachycephalosaurus 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.
- 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 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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gemini&genius
 | List Price: $23.99*
Lowest New Price: $17.99*
In Stock.*
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gemini&genius Dinosaur Toys Pachycephalosaurus Action Figure Stygimoloch Cretaceous Dinosaur World Figurine Gift, Collection, Cake Topper, Role-Play, Storytelling Props, Room Decoration for Kids- Manufacturer: Shenzhen Gemini Technology LTD.
- Brand: gemini&genius
- PartNumber: Dinosaur Figure Set -1
Physical Description:- Color: Pachycephalosaurus
Features:- 【Experience the Dinosaur World】Our dinosaur figures are made by hand painted with high detailed appearance. Their uniquely molded textures and richly painted details make the dinosaurs vivid.
- 【Develop Dexterity and Spark the Imagination】We encourage your kids to use their imagination to create their own magical kingdom. The toys will help to develop their skills while enjoying hours of imaginative play in great planet's history.
- 【Great Details】It is hand painted with amazing detail, realistic, educational, and fun, this figurine is suitable for a range of interests, including collectors, teachers, and kids. Another special characteristic of this figure is the care in the details and postures, which gives the impression that the figurines are animated.
- 【Durable and Safe】This figure is made of a-piece design with durable ABS material which is safe and eco-friendly and children-friendly. This is the most durable design as you can imagine, when your children grow up, these toys are still fine and become valuable collectibles.
- 【Awesome Gifts】Such cute & different varieties of dinosaur figures are worthy to be collected, for decorating children's bookcase, desk and room. They are awesome birthday gifts or prizes for kids, also they would be good ideas to use as the cake toppers and make a dinosaur theme cake for your children. They would love that so much.
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AULUDA
 | Lowest New Price: $28.99*
In Stock.*
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Pachycephalosaurus Plush Toy, 17" Dinosaur Stuffed Animal Throw Plushie Pillow Doll, Soft Blue Fluffy Friend Hugging Cushion - Present for Every Age & Occasion- Manufacturer: AULUDA
- Brand: AULUDA
- Model: ald-dino-01aw
- PartNumber: AULUDA-Dinosaur World-01
Physical Description:- Color: Pachycephalosaurus 17”
Features:- ★Comfortable Companion: Dinosaur (Pachycephalosaurus) hug toy presents a super soft, cute & adorable build that is comfortable to hug during sleep. Kids, teens & adults love these classic & collectible comfy critters.
- ★Premium Materials: Made of top quality plush fabrics simulate real fur. Feather soft PP cotton filler stuff in this fully dressed animal plush toy. High quality inner stuffing is really comfortable to hold and support your resting body around it. The Dinosaur doll looks like a peel banana is so huggable.
- ★Best Gift: Lovely design, amazingly unique, cute and realistic plush dino doll look, cannot find anywhere else. Children and adults of all ages will love this cartoon plushie toy to play with & as a hug plush for reading, watching television, studying, and sleepy nap time.
- ★Length: 17" (43 cm) long in full of softness and able to tangle. Fully cover in soft plush ready to play and ready to be lean and sit on.
- ★Suitable: Great gift for bedroom, nursery, living room, family, office, playground, unique animal jungle park zoo theme decoration center piece for birthday, Halloween, Christmas or any other holiday.
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Higherbros
 | List Price: $16.99*
Lowest New Price: $13.99*
In Stock.*
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Click Here | Description:
Higherbros Pachycephalosaurus Dinosaur Toys Stygimoloch Wildlife Action Figure for Kids Birthday Cake Topper,, Home Decoration and Dinos Fans Collection- Manufacturer: Higherbros
- Brand: Higherbros
- UPC: 736809640061
- EAN: 0736809640061
- PartNumber: DINO-2
Physical Description:- Weight: 0.49 Pounds
- Color: Pachycephalosaurus
Features:- 【DETAILED AND REALISTIC】：Each piece of Higherbros‘s action figure is hand crafted with precision and authentic detail and has its own character. They all have lifelike appearances, every detail trying to reproduce the features of a real animal.
- 【SAFE&HIGH QUALITY】: Our animal toys are made of high quality durable Rubber and ABS materials, Eco-friendly and child friendly. our production process are in strict compliance with the most reputable organizations of child safety standards, including ASTM, ICTI and more.
- 【THE EDUCATIONAL ROLE OF TOYS】: The Dinosaur series introduces children to the names of animals, Inspire imaginative play and vocabulary development.
- 【DURABLE】: Made of durable materials with integrated and seamless design, it's a toy companies children's whole childhood.
- 【PERFECT GIFT】: The Saichania figurine animal toys are great for Birthday gift, Christmas celebration games, can be used as cake topper, school rewards, party supplies and the coolest decoration, no doubt about it!
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Jurassic World Toys
Toy
 | Lowest New Price: $70.88*
In Stock.*
*(As of 19:17 Pacific 25 Jan 2023 More Info)
Click Here | Description:
Jurassic World Battle Damage Pachycephalosaurus Figure- Manufacturer: Mattel
- Brand: Jurassic World Toys
- Model: FTK70
- UPCs: 887961645866, 767344542268
- EANs: 0767344542268, 0887961645866
- PartNumber: FTK70
Details:Physical Description:- Size: 6.5 Inches by 2.25 Inches by 8.0 Inches
- Weight: 0.3086471668 Pounds
Features:- Get ready for thrilling action and adventure with Jurassic World!
- These Battle Damage dinosaur action figures have a spring-loaded damage panel feature that snaps back on impact to reveal the battle wound!
- Boys will love battling it out again and again and seeing the gory results
- Just reset the Battle Damage action figure to play out favorite action battles from the movie again and again!
- Great gift for Jurassic World fans!
Click here for more information |
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Schleich
Multi Accessory
 | Lowest New Price: $12.99*
In Stock.*
*(As of 19:17 Pacific 25 Jan 2023 More Info)
Click Here | Description:
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
Click here for more information |
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Jurassic World Toys
Multi Toy
 | Lowest New Price: $84.99*
In Stock.*
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Click Here | Description:
JURASSIC WORLD SAVAGE STRIKE Pachycephalosaurus- Manufacturer: Mattel
- Brand: Jurassic World Toys
- Model: GFG64
- UPC: 887961761481
- EAN: 0887961761481
- PartNumber: GFG64
Details:Physical Description:- Size: 4.0 Inches by 2.748 Inches by 7.748 Inches
- Weight: 0.3747858454 Pounds
- Color: Multi
Features:- Play out the ultimate in dinosaur rivalry and battle with Jurassic World Savage Strike dinosaur action figures!
- Featured in a smaller size but packing a Savage Strike, these dinosaur action figures have an attack move iconic to their respective species.
- Use Savage Strike attack moves like biting, head ramming, wing flapping and more to play out movie action scenes!
- Each dinosaur action figure is activated by pressing an area on the body to create a Savage Strike move (varies per dinosaur).
- These fierce dinosaur action figures feature articulated arms and legs, realistic sculpting and authentic decoration capturing all the excitement of the movie. Battle it out—Savage Strike style—with these fierce action figures!
- Includes informative Dino Rivals collector card for each dinosaur with key battle stats and attributes
- Download the Jurassic World Facts app (Android and iOS) for more dinosaur fun! App lets you scan your dinosaurs and watch them come to life, learn attack facts, compare stats and more!
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Playskool
Multi-colored Toy
 | Lowest New Price: $24.92*
In Stock.*
*(As of 19:17 Pacific 25 Jan 2023 More Info)
Click Here | Description:
Playskool Heroes Jurassic World Pachycephalosaurus- Manufacturer: Hasbro
- Brand: Playskool
- Model: B3864AS0
- UPC: 630509353057
- EAN: 0630509353057
- PartNumber: B3864AS0
Details:Physical Description:- Size: 7.52 Inches by 1.811 Inches by 4.488 Inches
- Color: Multi-colored
Features:- Dino figure looks like a powerful Pachycephalosaurus
- Figure has awesome head-bobbing action
- Dino figure is sized just right for little hands
- Action figure scale: 2.5 inches
- Includes Pachycephalosaurus figure.
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Safari Ltd.
Toy
 | Lowest New Price: $30.95*
In Stock.*
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Click Here | Description:
Safari Ltd. Wild Safari Prehistoric World Pachycephalosaurus Toy Dinosaur Figure for Boys & Girls Ages 3 and Up, Realistic Figurine- Manufacturer: Safari Ltd.
- Brand: Safari Ltd.
- Model: S100350
- UPC: 095866004118
- EAN: 0095866004118
- PartNumber: S100350
Details:Physical Description:- Size: 4.0157480274 Inches by 8.1102362122 Inches by 2.6377952729 Inches
Features:- The distinctive dome-headed Pachycephalosaurus is believed to have used its thick skull during combat with others of its species, perhaps while trying to impress potential mates. They may have butted their heads together, or slammed them into each other's sides.
- This detailed Safari Ltd Pachycephalosaurus toy dinosaur figure will transport you back to the Late Cretaceous Period! This dinosaur figurine measures 8 inches long and 3 3/4 inches tall.
- REALISTIC, DETAILED AND ACCURATE: With a focus on educating kids about the natural world, Safari Ltd's dinosaur toys and prehistoric animal figurines are thoroughly researched by experts and sculpted by professionals to ensure scientific accuracy and provide the most educational figurine possible to allow children to learn as they play!
- TESTED FOR QUALITY AND SAFETY - Safari Ltd ensures all of its products are tested to ensure they're safe for kids! Certified by accredited labs to be free of lead, phthalates, and other harmful chemicals, Safari Ltd dinosaur and prehistoric animal figurines are non-toxic and made to stand up to rigorous play.
- All of our products are Non-toxic and BPA free
Click here for more information |
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Jurassic World
Toy
 | List Price: $18.23*
Lowest New Price: $16.98*
In Stock.*
*(As of 19:17 Pacific 25 Jan 2023 More Info)
Click Here | Description:
Jurassic World Legacy Collection (Pachycephalosaurus)- Manufacturer: Mattel
- Brand: Jurassic World
- Model: HFF13
- UPC: 887961943917
- EAN: 0887961943917
- PartNumber: GWN34
Details:Physical Description:- Size: 0.393700787 Inches by 0.393700787 Inches by 0.393700787 Inches
Features:- Celebrate the classic moments, themes and characters from the Jurassic World film franchise with the Legacy Collection. Relive the excitement of dinosaurs on the loose with this special collection of posable action figures
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