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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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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 Janet Riehecky
The Childs World Inc
Released: September 1st, 1990
Library Binding (32 pages)
 | List Price: $21.36*
Lowest Used Price: $5.84*
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
- Number of Pages: 32
- Author: Janet Riehecky
- Publication Date: September 1st, 1990
- Release Date: September 1st, 1990
Physical Description:- Size: 10.5 Inches by 8.5 Inches by 0.5 Inches
- Weight: 0.45 Pounds
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By Dean Miller
Cavendish Square Publishing
Released: January 1st, 2014
Hardcover (32 pages)
 | Lowest New Price: $29.50*
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.*
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Click Here | Description:
Meet Pachycephalosaurus (Age of Dinosaurs)- Manufacturer: Cavendish Square Publishing
- Brand: Cavendish Square Publishing
- ISBN: 1627126163
- EAN: 9781627126168
Details:- Hardcover
- Number of Pages: 32
- Authors: Dean Miller, Henley Miller
- Publication Date: January 1st, 2014
- Release Date: January 1st, 2014
Physical Description:- Size: 10.2 Inches by 8.2 Inches by 0.4 Inches
- Weight: 0.85 Pounds
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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: $5.98*
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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: 0.5 Pounds
Features:- Used Book in Good Condition
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By Tim Batty
Haynes Publishing UK
Released: November 26th, 2019
Paperback (192 pages)
 | Lowest New Price: $6.95*
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Click Here | Description:
Dinosaurs: Classification, Time, Size, Diet & More! (Haynes Pocket Manual)- Manufacturer: Haynes Publishing UK
- Brand: Haynes Publishing UK
- ISBN: 1785216775
- EAN: 9781785216770
Details:- Paperback
- Format: Illustrated
- Edition: Illustrated
- Number of Pages: 192
- Author: Tim Batty
- Publication Date: November 26th, 2019
- Release Date: November 26th, 2019
Physical Description:- Size: 6.375 Inches by 5.0 Inches by 0.75 Inches
- Weight: 0.6834330122 Pounds
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By Clare Hibbert
Enslow Publishing
Released: August 15th, 2018
Paperback (32 pages)
 | List Price: $10.53*
Lowest New Price: $7.99*
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Click Here | Description:
Fierce Dinosaurs: Pachycephalosaurs and Ceratopsians (Dino Explorers)- Manufacturer: Enslow Publishing
- Brand: Enslow Publishing
- ISBN: 1978500092
- EAN: 9781978500099
Details:- Paperback
- Number of Pages: 32
- Author: Clare Hibbert
- Publication Date: August 15th, 2018
- Release Date: August 15th, 2018
Physical Description:- Size: 10.7 Inches by 8.2 Inches by 0.2 Inches
- Weight: 0.3 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.
Jurassic World Toys
Multi Toy
 | Lowest New Price: $28.32*
In stock on January 26, 2021. Order it now.*
*(As of 00:28 Pacific 19 Jan 2021 More Info)
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
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Jurassic World Toys
Multi Toy
 | Lowest New Price: $22.00*
In Stock.*
*(As of 00:28 Pacific 19 Jan 2021 More Info)
Click Here | Description:
Jurassic World Savage Strike Pachycephalosaurus Figure in Smaller Size with Unique Attack Moves Like Biting, Head Ramming, Wing Flapping, Articulation and More- Manufacturer: Mattel
- Brand: Jurassic World Toys
- Model: GKG13
- UPC: 887961825725
- EAN: 0887961825725
- PartNumber: GKG13
Details:Physical Description:- Size: 4.72 Inches by 1.97 Inches by 6.69 Inches
- Weight: 0.220462262 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
Click here for more information |
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Jurassic World Toys
Toy
 | Lowest New Price: $23.88*
In Stock.*
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JURASSIC WORLD 12" BASIC Pachycephalosaurus- Manufacturer: Mattel
- Brand: Jurassic World Toys
- Model: FNY43
- UPC: 887961604603
- EAN: 0887961604603
- PartNumber: FNY43
Details:Physical Description:- Size: 12.0 Inches by 2.0 Inches by 4.0 Inches
- Weight: 0.49 Pounds
Features:- Get ready for thrilling action and adventure with Jurassic world!
- These 12-inch fan favorites come in a larger action figure scale and feature dinosaurs and characters inspired by the film!
- Each action figure features realistic sculpting and authentic decoration
- Stage the ultimate epic dinosaur battles and play out all the action and adventure scenes from the movie!
- Great gift for Jurassic world fans!
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Safari Ltd.
Toy
 | List Price: $26.34*
Lowest New Price: $18.99*
In Stock.*
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Safari Ltd Wild Safari Prehistoric World Collection - Hand Painted Pachycephalosaurus Figurine 8" x 3.75" - Non-Toxic and BPA Free - Ages 3+- Manufacturer: Safari Ltd.
- Brand: Safari Ltd.
- Model: S100350
- UPC: 095866004118
- EAN: 0095866004118
- PartNumber: 100350
Details:Physical Description:- Size: 4.330708657 Inches by 8.267716527 Inches by 2.755905509 Inches
Features:- Scientific Name: Pachycephalosaurus (“thick-headed lizard”)
- Characteristics: This bone-headed Pachycephalosaurus features its trademark domed skull and bony knobs on its head that the dinosaur is well known for. Its head features an injury from combat, which is a feature that has been found on at least one Pachycephalosaur skull.
- Size and Color: This Pachycephalosaurus figure is 8 inches long and 3 3/4 inches tall, about the size of a pair of scissors. Its body is a dull orange with light blue-gray stripes running down its back, sides, and underbelly. Its beak, bony knobs and claws are a warm gray.
- The Pachycephalosaurus is part of the Wild Safari Prehistoric World collection
- All of our products are Non-toxic and BPA free
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Jurassic World Toys
Toy
 | Lowest New Price: $20.00*
In Stock.*
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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!
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SCHLEICH
Accessory
 | Lowest New Price: $19.99*
In Stock.*
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Schleich Dinosaurs, Dinosaur Toy, Dinosaur Toys for Boys and Girls 4-12 years old, Pachycephalosaurus- Manufacturer: Schleich
- Brand: SCHLEICH
- Model: 15024
- EAN: 4059433276878
- PartNumber: 15024
Details:- Product Category: Accessory
Physical Description:- Size: 8.5 Inches by 4.3 Inches by 2.6 Inches
- Weight: 0.254 Pounds
Features:- DESIGNED FOR PLAY. The Pachycephalosaurus dinosaur toy is a lifelike model of the dinosaur that lived during the Late Cretaceous period
- DETAILED & REALISTIC. Schleich dinosaur toys are modeled in the finest and most realistic detail to help children learn while they play
- PART OF A GROWING PLAY WORLD. The Pachycephalosaurus is part of the toy Dinosaurs collection of figurines and playsets from Schleich and is a great gift for boys and girls ages 4 through 12
- BUILT TO LAST. As an 85-year-old German toy company, our toys are manufactured with the highest standard of quality and safety and all products and materials meet or exceed the strictest applicable 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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Jurassic Park
Multi-colored Toy
 | Lowest New Price: $39.95*
In Stock.*
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Click Here | Description:
Jurassic World Bashers & Biters Pachycephalosaurus Figure- Manufacturer: Hasbro
- Brand: Jurassic Park
- Model: B1829AS0
- UPCs: 687299942794, 715877286388, 794628941295, 885669172738, 630509302789, 885661323244, 796037414841
- EANs: 0630509302789, 0794628941295, 0687299942794, 0715877286388, 0796037414841, 0885669172738, 0885661323244
- PartNumber: B1829AS0
Details:Physical Description:- Size: 6.496 Inches by 2.362 Inches by 8.11 Inches
- Weight: 0.33951188348 Pounds
- Color: Multi-colored
Features:- Bashers & Biters figure looks like Pachycephalosaurus
- Bashing head
- Bashing attack
- Includes figure.
Click here for more information |
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Jurassic World Toys
Released: July 21st, 2020
Multi Toy
 | Lowest New Price: $49.95*
In Stock.*
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Click Here | Description:
Jurassic World Big Action Pachycephalosaurus Figure, 12-inch- Manufacturer: Mattel
- Brand: Jurassic World Toys
- Model: GNH28
- UPC: 887961870572
- EAN: 0887961870572
- PartNumber: GNH28
Details:- Product Category: Toy
- Publication Date: July 21st, 2020
- Release Date: July 21st, 2020
Physical Description:- Size: 6.97 Inches by 2.76 Inches by 12.99 Inches
- Color: Multi
Features:- Get ready for thrilling action and adventure with Jurassic World!
- Larger-scale action figures come in 12-inch scale and feature fan favorite dinosaurs and characters inspired by the film!
- Realistic sculpting and authentic decoration make these 12-inch action figures a stand out!
- Realistic sculpting and authentic decoration make these 12-inch action figures a stand out!
- Realistic sculpting and authentic decoration make these 12-inch action figures a stand out!
Click here for more information |
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Lana Toys
Primary Toy
 | Lowest New Price: $16.99*
Usually ships within 6 to 10 days.*
*(As of 00:28 Pacific 19 Jan 2021 More Info)
Click Here | Description:
Stygimoloch Dinosaur Figure Pachycephalosaurus Model Realistic Animal Toys Collector Decoration Gift Birthday Party for Adult- Manufacturer: Lana Toys
- Brand: Lana Toys
- UPC: 704755103206
- EAN: 0704755103206
- PartNumber: 704755103206
Details:Physical Description:Features:- ✅【Size】 Stygimoloch: 21.5 x 5.5 x 12 cm / 8.4 x 2.1 x 4.7 inches
- ✅【Package Include】 1 x Stygimoloch Figure
- ✅【Feature】 Dinosaur Toy, Animal Decor, Collector, Note: Some Stygimoloch figures may be unable to stand alone, we suggest that you can use the hot hair dryer to correct after receiving. If you mind this point please be careful to buy, thank you!
- ✅【Material】 Made of PVC, Safe and Eco-friendly.
- ✅【Detail】 High detailed and Beautifully Finished.
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