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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 Dean Miller
Cavendish Square
Released: January 1st, 2014
Library Binding (32 pages)
 | Lowest New Price: $29.50*
In Stock.*
*(As of 00:11 Pacific 7 Apr 2020 More Info)
Click Here | Description:
Meet Pachycephalosaurus (Age of Dinosaurs)- Manufacturer: Cavendish Square
- ISBN: 1627126163
- EAN: 9781627126168
Details:- Product Category: Library Binding
- Number of Pages: 32
- Authors: Dean Miller, Henley Miller
- Publication Date: January 1st, 2014
- Release Date: January 1st, 2014
Physical Description:- Size: 10.5 Inches by 8.5 Inches by 0.25 Inches
- Weight: 0.85 Pounds
Click here for more information |
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By Enrique Fiesta
CreateSpace Independent Publishing Platform
Released: January 23rd, 2015
Paperback (54 pages)
 | Lowest New Price: $11.99*
Usually ships within 2 to 3 days.*
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Click Here | Description:
Pachycephalosaurus - Thick-Headed Lizard- Manufacturer: 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 0.13 Inches
- Weight: 0.19 Pounds
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By Tona Minds
Independently published
Released: April 2nd, 2020
Paperback (104 pages)
 | Lowest New Price: $5.99*
Usually ships within 3 days.*
*(As of 00:11 Pacific 7 Apr 2020 More Info)
Click Here | Description:
My Big Realistic Dinosaur Kids 1 4: 50 Funny Bactrosaurus, Egg, Stegosaurus, Pachycephalosaurus, Pliosaurus, Fossil, Cryolophosaurus, Euoplocephalus ... Quizzes Words Activity And Coloring Book- Manufacturer: Independently published
- EAN: 9798633228175
Details:- Paperback
- Number of Pages: 104
- Author: Tona Minds
- Publication Date: April 2nd, 2020
- Release Date: April 2nd, 2020
Physical Description:- Size: 11.0 Inches by 8.5 Inches by 0.24 Inches
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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: $5.96*
In Stock.*
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Click Here | Description:
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
Click here for more information |
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By Janet Riehecky
The Childs World Inc
Released: September 1st, 1990
Library Binding (32 pages)
 | List Price: $21.36*
Lowest Used Price: $6.07*
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 Fabio Marco
Blackbirch
Released: April 6th, 2007
Hardcover (32 pages)
 | List Price: $25.65*
Lowest Used Price: $5.66*
In Stock.*
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Click Here | Description:
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: 0.65 Pounds
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By Frances Swann
Brand: Rourke Pub Group
Released: March 1st, 1989
Library Binding
 | List Price: $21.93*
Lowest Used Price: $5.97*
In Stock.*
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Click Here | Description:
Pachycephalosaurus (Dinosaur Library)- Manufacturer: Rourke Pub Group
- Brand: Brand: Rourke Pub Group
- ISBN: 0865925267
- EAN: 9780865925267
Details:- Product Category: Library Binding
- Author: Frances Swann
- Publication Date: March 1st, 1989
- Release Date: March 1st, 1989
Physical Description:- Size: 10.75 Inches by 7.75 Inches by 0.5 Inches
- Weight: 0.68 Pounds
Features:- Used Book in Good Condition
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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: $16.22*
In Stock.*
*(As of 00:11 Pacific 7 Apr 2020 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
- 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
Toy
 | List Price: $18.95*
Lowest New Price: $15.49*
In Stock.*
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Click Here | Description:
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!
- 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!
- Play out all the action and adventure scenes from the movie and stage the ultimate epic dinosaur battles!
- Each sold separately, subject to availability
Click here for more information |
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Jurassic World Toys
Toy
 | Lowest New Price: $30.95*
In Stock.*
*(As of 00:11 Pacific 7 Apr 2020 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!
- Spring-loaded damage panel feature snaps back on impact to reveal the battle wound on these Battle Damage dinosaur action figures!
- Boys will love battling it out again and again to see the results
- Reset the Battle Damage action figure to play out favorite movie battles again and again!
- Choose from Battle Damage Stiggy, Battle Damage Velociraptor Blue, Battle Damage Pachycephalosaurus, Battle Damage Herrerasaurus and Battle Damage Gallimimus
Click here for more information |
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Carnegie Collection
Toy
 | Lowest New Price: $19.80*
In Stock.*
*(As of 00:11 Pacific 7 Apr 2020 More Info)
Click Here | Description:
Pachycephalosaurus- Manufacturer: Safari Ltd
- Brand: Carnegie Collection
- Model: 4018-01.
- UPC: 095866004187
- EAN: 0095866004187
- PartNumber: 401801
Details:Physical Description:- Size: 1.81 Inches by 4.41 Inches by 2.4 Inches
Features:- The world's premier line of collectible dinosaur replicas.
- This replica has been researched and authenticated by the Carnegie Museum of Natural History, Pittsburgh, Pennsylvania.
- The hand-painted Pachycephalosaurus is scaled at 1:40 and measures 7.5" L x 3.5" (19 x 9 cm).
- Includes a 5-language educational hang tag.
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Papo
Multi Toy
 | Lowest New Price: $12.37*
In Stock.*
*(As of 00:11 Pacific 7 Apr 2020 More Info)
Click Here | Description:
Papo The Dinosaur Figure, Baby Pachycephalosaurus- Manufacturer: Papo
- Brand: Papo
- Model: 55005
- UPCs: 810973016324, 899998539087, 754295219622, 885956526367, 792491679307, 785239517078
- EANs: 3465000550059, 0792491679307, 0810973016324, 0785239517078, 0885956526367, 0899998539087, 0754295219622
- PartNumber: 55005
Details:Physical Description:- Size: 6.299212592 Inches by 7.086614166 Inches by 3.543307083 Inches
- Weight: 0.1543235834 Pounds
- Color: Multi
Features:- Part Of The Dinosaur Collection - This Baby Pachycephalosaurus is part of the dinosaur collection and it’s called "thick headed lizard" lived in the Cretaceous period approximately 70 million years ago. Its main characteristic was without a doubt the large hump in the form of a dome on its head.
- Mix and Match - This Baby Pachycephalosaurus figure is perfect to mix and match with other Papo dinosaurs. It is great for education purposes, creative play, party favors and crafts.
- Develops Dexterity And Sparks The Imagination - We encourage your kids to use their imagination to create their own magical kingdom. This Papo toy will help to develop their skills while enjoying hours of imaginative play in great planet's history.
- Beautifully Finished And Durable - The art work and detail are beautiful on this hand painted figure. It is made with high quality plastic and its measures approximately 3.5 inches tall; Suitable for ages: 3+ Years.
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Jurassic World Action Figure
Toy
 | Lowest New Price: $32.75*
In Stock.*
*(As of 00:11 Pacific 7 Apr 2020 More Info)
Click Here | Description:
Jurassic World Action Figure Dino Rivals Savage Strike Pachycephalosaurus Jurassic Park Action Figure- Manufacturer: Figure
- Brand: Jurassic World Action Figure
- UPC: 783515883312
- EAN: 0783515883312
- PartNumber: Pachycephal46754
Details: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 Park
Multi-colored Toy
 | Lowest New Price: $28.99*
In Stock.*
*(As of 00:11 Pacific 7 Apr 2020 More Info)
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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