Replica of Tyrannosaurus rex at the Senckenberg Museum.Triceratops skeleton at the Smithsonian National Museum of Natural History.A statue of Diplodocus carnegiei, outside the Carnegie Museum of Natural History.A nesting ground of Maiasaura was discovered in 1978.
Discover great deals on the many hard to find and one of a kind items available only on ebay!

This site contains sponsored affiliate links.

Dinosaur

Dinosaurs are vertebrates (that range from crocodile-like to birds) that dominated the terrestrial ecosystem for over 160 million years from around 230 million years ago until 65 million years ago, at the end of the Cretaceous period, when all non-avian dinosaurs became extinct; and still exist today in the line of birds (avian dinosaurs). more...

HomeHome
AmphibianAmphibian
ArthropodArthropod
BirdBird
CatCat
DinosaurDinosaur
AllosaurusAllosaurus
ApatosaurusApatosaurus
ArchaeopteryxArchaeopteryx
BrachiosaurusBrachiosaurus
BrontosaurusBrontosaurus
DiplodocusDiplodocus
GigantosaurusGigantosaurus
HadrosaurusHadrosaurus
PterodactylPterodactyl
StegosaurusStegosaurus
TriceratopsTriceratops
Tyrannosaurus Rex  Tyrannosaurus Rex
VelociraptorVelociraptor
DogDog
FishFish
MammalMammal
MythologicalMythological
ReptileReptile


Knowledge about dinosaurs comes from both fossil and non-fossil records, including fossilized bones, feces, trackways, gastroliths, feathers, impressions of skin, internal organs and soft tissues. Dinosaur remains have been found on every continent on Earth, including Antarctica. This shows that all land masses were at one time connected in a super continent, called Pangaea, due to the fact that numerous fossils of the same species have been found on completely different continents. Pangaea began to break up during the Triassic period around 230 Mya.

Since the first dinosaur was recognized in the 19th century, their mounted, fossilized skeletons have become major attractions at museums around the world. Dinosaurs have become a part of world culture and remain consistently popular, especially among children. They have been featured in best-selling books and blockbuster films such as Jurassic Park, and new discoveries are regularly covered by the media. The term is also used informally to describe any prehistoric reptile, such as the pelycosaur Dimetrodon, the winged pterosaurs, and the aquatic ichthyosaurs, plesiosaurs, and mosasaurs, though none of these are dinosaurs.

The on-going dinosaur renaissance began in the 1970s and was triggered, in part, by John Ostrom's discovery of Deinonychus, an active, vicious predator that may have been warm-blooded (homoeothermic), in marked contrast to the prevailing image of dinosaurs as sluggish and cold-blooded. Vertebrate paleontology has also become a global science, with major new discoveries in previously unexploited regions, including South America, Madagascar, Antarctica, and most significantly the amazingly well-preserved feathered dinosaurs in China, which have further solidified the link between dinosaurs and their living descendants, modern birds. The widespread application of cladistics, which rigorously analyzes the relationships between biological organisms, has also proved tremendously useful in classifying dinosaurs, which are still known from an incomplete fossil record.

What is a dinosaur?

Definition

The superorder or clade "Dinosauria" was formally named by the English scientist Richard Owen in 1842. The term is a combination of the Greek words deinos ("terrible" or "fearfully great" or "formidable") and sauros ("lizard" or "reptile"). The name was chosen to express Owen's awe at the size and majesty of the extinct animals, not out of fear or trepidation at their size and formidable arsenal. Dinosaurs are extremely varied. Some were herbivorous, others carnivorous. Some dinosaurs were bipedal, others quadrupedal, while others could walk easily on both two and four legs, such as the dinosaur Ammosaurus.

Under phylogenetic taxonomy, dinosaurs are defined as all descendants of the most recent common ancestor of Triceratops and modern birds. Ornithischia is defined as all taxa sharing a more recent common ancestor with Triceratops than with Saurischia. Saurischia is defined as all taxa sharing a more recent common ancestor with birds than with Ornithischia. It has also been suggested that Dinosauria be defined as as all the descendants of the most recent common ancestor of Megalosaurus and Iguanodon

There is an almost universal consensus among paleontologists that birds are the descendants of theropod dinosaurs. Using the strict cladistical definition that all descendants of a single common ancestor are related, modern birds are dinosaurs and dinosaurs are, therefore, not extinct. Modern birds are classified by most paleontologists as belonging to the subgroup Maniraptora, which are coelurosaurs, which are theropods, which are saurischians, which are dinosaurs.

However, birds are morphologically distinct from their reptilian ancestors, and referring to birds as "avian dinosaurs" and to all other dinosaurs as "non-avian dinosaurs" is clumsy. Birds are still birds, at least in popular usage and among ornithologists. It is also technically correct under the older Linnaean classification system, which accepts taxa that exclude some descendants of a single common ancestor (paraphyletic taxa). Paleontologists mostly use cladistics in their classifications, which classifies birds as dinosaurs, but many other scientists do not. As a result, this article will use "dinosaur" as a synonym for "non-avian dinosaur", and "bird" as a synonym for "avian dinosaur".

Size

Only a tiny percentage of animals ever fossilize, and most of these remain buried in the earth. As a result, the smallest and largest dinosaurs will probably never be discovered. Even among those specimens that are recovered, few are known from complete skeletons, and impressions of skin and soft tissue are rare. Reconstructing a skeleton by comparing the size and morphology of bones to those of similar, better-known species is inexact, and restoring the muscles and other organs is, at best, educated guesswork.

While the largest and smallest dinosaurs will probably remain unknown, and a comparison between existing specimens is imprecise, it is clear that, as a group, dinosaurs were large. By dinosaur standards the sauropods were gigantic. The smallest sauropods were larger than anything else in their habitat, and the largest were an order of magnitude more massive than anything else that has ever walked the Earth.

The tallest and heaviest dinosaur known from a complete skeleton is the Brachiosaurus, which was discovered in Tanzania between 1907–12. It is now mounted in the Humboldt Museum of Berlin and is 12 m (38 ft) tall and probably weighed between 30,000–60,000 kg (30–70 short tons). The longest dinosaur is the 27 m (89 ft) long Diplodocus, which was discovered in Wyoming and mounted in Pittsburgh's Carnegie Natural History Museum in 1907.

Read more at Wikipedia.org


[List your site here Free!]

Jurassic World Dominion Therizinosaurus Dinosaur Mask with Opening Jaw CostumeJurassic World Dominion Therizinosaurus Dinosaur Mask with Opening Jaw Costume $9.99 Collectable dinosaur king trading cards Multi listing Dinosaur cards (2008)Collectable dinosaur king trading cards Multi listing Dinosaur cards (2008) $1.57
Jurassic World Hammond Collection Pyroraptor Dinosaur Action Figure Toy,Jurassic World Hammond Collection Pyroraptor Dinosaur Action Figure Toy, $20.99 Framed Triceratops or Torosaurus Fossil Dinosaur Tooth Lot! One per Order!Framed Triceratops or Torosaurus Fossil Dinosaur Tooth Lot! One per Order! $34.99
Dinosaur Roar - Paperback By Stickland, Paul - Very GoodDinosaur Roar - Paperback By Stickland, Paul - Very Good $3.91 Authentic Sonny Angel Dinosaur 1 Blind Box (Us Seller import from Japan)Authentic Sonny Angel Dinosaur 1 Blind Box (Us Seller import from Japan) $22.00
3D Print Biting Dino Dinosaur T Rex Spring action Clip Articulated Fidget Toy3D Print Biting Dino Dinosaur T Rex Spring action Clip Articulated Fidget Toy $14.98 Jurassic Park World Real Fx Baby T-Rex Realistic Animatronic Dinosaur (New)Jurassic Park World Real Fx Baby T-Rex Realistic Animatronic Dinosaur (New) $34.00
Framed Plesiosaur Fossil Tooth Lot Dinosaur Era Aquatic Reptile! One per OrderFramed Plesiosaur Fossil Tooth Lot Dinosaur Era Aquatic Reptile! One per Order $39.99 Big Dinosaur Toys for Boys 29 inch Large Gigantosaurus Trex Dinosaur Toys, GiantBig Dinosaur Toys for Boys 29 inch Large Gigantosaurus Trex Dinosaur Toys, Giant $39.49
Segnosaur Dinosaur Egg Fossilized Crystallized Fossil Jurassic Cretaceous WorldSegnosaur Dinosaur Egg Fossilized Crystallized Fossil Jurassic Cretaceous World $95.99 Sonny Angel Dinosaur Series - 1 Random Sonny AngelSonny Angel Dinosaur Series - 1 Random Sonny Angel $29.99
Jurassic Dinosaur World Indominus Rex Figure model kids toy-Christmas GiftJurassic Dinosaur World Indominus Rex Figure model kids toy-Christmas Gift $7.77 Jurassic World Dominion Minis Mega On-the-Go Dinosaur 30 Piece Danger SetJurassic World Dominion Minis Mega On-the-Go Dinosaur 30 Piece Danger Set $21.24
Lot of 104 Mini Educational Dinosaur Animal Figure Toys Set Kids Birthday GiftsLot of 104 Mini Educational Dinosaur Animal Figure Toys Set Kids Birthday Gifts $18.96 Raptor Dinosaur Action Figure Toy Figurine Velociraptor BlueRaptor Dinosaur Action Figure Toy Figurine Velociraptor Blue $5.99
5.3" Grallator Variabilis Dinosaurs Tracks Foot Prints Jurassic Age France Coa5.3" Grallator Variabilis Dinosaurs Tracks Foot Prints Jurassic Age France Coa $465.99 Amphibian-Vertebra-Nothos auria-Jurassic-dragon dinosaur fossil-Home Decor-2Amphibian-Vertebra-Nothos auria-Jurassic-dragon dinosaur fossil-Home Decor-2 $1.00
Target Bullseye Playground Dinosaur Birthday Party Animal Lot of 5 New with TagsTarget Bullseye Playground Dinosaur Birthday Party Animal Lot of 5 New with Tags $16.98 Schleich T-Rex Toy Figure Green Tyrannosaurus Rex Realistic Dinosaur Moving JawSchleich T-Rex Toy Figure Green Tyrannosaurus Rex Realistic Dinosaur Moving Jaw $22.99
Trigger Dinosaur Toys The T-Rex Bite Fury Funny Press Dinosaur Chomper Toy GiftsTrigger Dinosaur Toys The T-Rex Bite Fury Funny Press Dinosaur Chomper Toy Gifts $10.96 to Set of 10 Green Dinosaur Creatures Common & Uncommon *Nm* (English Magic Mtg)Set of 10 Green Dinosaur Creatures Common & Uncommon *Nm* (English Magic Mtg) $4.99
13.4" Jurassic Realistic Dinosaur Mosasaurus High Detail Figure Dino Toy Model13.4" Jurassic Realistic Dinosaur Mosasaurus High Detail Figure Dino Toy Model $13.99 Dinosaur Toys, Giganotosaurus Dinosaur Action Figure, Birthday Cake Toppers, .Dinosaur Toys, Giganotosaurus Dinosaur Action Figure, Birthday Cake Toppers, . $17.96
Jurassic Realistic Dilophosaurus Dinosaur Model Figure Kid Toy Christmas GiftJurassic Realistic Dilophosaurus Dinosaur Model Figure Kid Toy Christmas Gift $11.99 New Dinosaur Mixed 28 Pieces Plastic Toy Figures Lot. Age 3+New Dinosaur Mixed 28 Pieces Plastic Toy Figures Lot. Age 3+ $5.97
12pcs Dinosaur Skeleton Fossils Assorted Bones Figures Toys Children Gift12pcs Dinosaur Skeleton Fossils Assorted Bones Figures Toys Children Gift $10.34 12 Pcs Movie The Good Dinosaur Animal Action Figures Doll Kids Boy Girl Toy Gift12 Pcs Movie The Good Dinosaur Animal Action Figures Doll Kids Boy Girl Toy Gift $10.99
Lot of Plastic Dinosaur Toy Figures Mixed Sizes & Brands (Lot Of 23)Lot of Plastic Dinosaur Toy Figures Mixed Sizes & Brands (Lot Of 23) $21.95 Jurassic World Toys Camp Cretaceous Sound Strike Cryolophosaurus Dinosaur FigureJurassic World Toys Camp Cretaceous Sound Strike Cryolophosaurus Dinosaur Figure $17.99
Gorgon - Gorgosaurus Walking with Dinosaurs Toy with Sound New!Gorgon - Gorgosaurus Walking with Dinosaurs Toy with Sound New! $24.99 Dinosaur Train ToysDinosaur Train Toys $22.99
Mattel Jurassic Park World Epic Attack Slash Attackin' Spinosaurus Dinosaur 🦖Mattel Jurassic Park World Epic Attack Slash Attackin' Spinosaurus Dinosaur 🦖 $89.95 Dinosaur Toy Dinosaur mat for boy 2 in 1 Storage Box & Activity Boys Play MatDinosaur Toy Dinosaur mat for boy 2 in 1 Storage Box & Activity Boys Play Mat $14.98
Jurassic Realistic Dinosaur Allosaurus Indoraptor Raptor Figure Dino Toy 11"Jurassic Realistic Dinosaur Allosaurus Indoraptor Raptor Figure Dino Toy 11" $11.99 Jurassic Park Dinosaurs Toy MulticoloredJurassic Park Dinosaurs Toy Multicolored $19.95
Lego Jurassic World Set 76941 Carnotaurus Dinosaur Chase 2021 No DinosaurLego Jurassic World Set 76941 Carnotaurus Dinosaur Chase 2021 No Dinosaur $18.98 dinosaur figure lot rare collectiondinosaur figure lot rare collection $45.00
Lot of 104 Mini Dinosaur Figure Toys Set Children's Day Kids Birthday Gifts UsaLot of 104 Mini Dinosaur Figure Toys Set Children's Day Kids Birthday Gifts Usa $18.77 Jurassic World Park Dinosaur Toy Lot Of 2Jurassic World Park Dinosaur Toy Lot Of 2 $16.99
Dinosaur [New Blu-ray] With Dvd, Widescreen, Ac-3/Dolby Digital, Dolby, DigitaDinosaur [New Blu-ray] With Dvd, Widescreen, Ac-3/Dolby Digital, Dolby, Digita $14.27 Dinosaur (2-Disc Collectors Edition) - Dvd - GoodDinosaur (2-Disc Collectors Edition) - Dvd - Good $4.39
T-Rex Dinosaur Inflatable Costume Suit Outfit w/Batteries Fans For Kids CosplayT-Rex Dinosaur Inflatable Costume Suit Outfit w/Batteries Fans For Kids Cosplay $43.99 "Velociraptor Ii" Dinosaur Round 1 oz .999 Copper Round Dinosaur series"Velociraptor Ii" Dinosaur Round 1 oz .999 Copper Round Dinosaur series $2.12
8" Spinosaurus Kid Galaxy Dino Dinosaur Toy Figure - Light Up Eyes8" Spinosaurus Kid Galaxy Dino Dinosaur Toy Figure - Light Up Eyes $11.99 Remote Control Dinosaur, Dinosaur Toys for Kids With 50 Sheets Dinosaur StickendRemote Control Dinosaur, Dinosaur Toys for Kids With 50 Sheets Dinosaur Stickend $21.83
mini dinosaurs toy setmini dinosaurs toy set $6.99 Dinosaur Train Buddy 6" Interactive Talking T Rex WorksDinosaur Train Buddy 6" Interactive Talking T Rex Works $15.00
Dinosaur Toys For Kids 35 Dinosaur Skeleton Transport Truck Set With 12 DinosaurDinosaur Toys For Kids 35 Dinosaur Skeleton Transport Truck Set With 12 Dinosaur $29.10 Unique Real Amphibian-Vertebra-Nothos auria-Jurassic Dragon Dinosaur FossilUnique Real Amphibian-Vertebra-Nothos auria-Jurassic Dragon Dinosaur Fossil $67.99
Learning Curve Don Pteranodon 7" Talking Interactive Dinosaur Train Figure 2010Learning Curve Don Pteranodon 7" Talking Interactive Dinosaur Train Figure 2010 $21.00 320 Gram Dinosaur Dung Specimen Coprolite/Fossil/rock320 Gram Dinosaur Dung Specimen Coprolite/Fossil/rock $4.99
Dinosaur Toy Pull Back Cars 6 Pack Dinosaur Boy Toys Age 3+ Dino T-Rex GamesDinosaur Toy Pull Back Cars 6 Pack Dinosaur Boy Toys Age 3+ Dino T-Rex Games $8.99 dinosaur king Parasaurolophus Dkcg - 158/160dinosaur king Parasaurolophus Dkcg - 158/160 $5.00
Remote-controlled dinosaur for kids 3+Remote-controlled dinosaur for kids 3+ $15.68 Jurassic World Camp Cretaceous Ankylosaurus Bumpy Dino Escape Roar Attack NewJurassic World Camp Cretaceous Ankylosaurus Bumpy Dino Escape Roar Attack New $39.99
Jurassic World Real Fx Baby Blue Hyper-Realistic Dinosaur Animatronic Puppet ToyJurassic World Real Fx Baby Blue Hyper-Realistic Dinosaur Animatronic Puppet Toy $60.00 15" Jurassic Realistic Mosasaurus Dinosaur Dino Figure Figurine Kids Toy Gift15" Jurassic Realistic Mosasaurus Dinosaur Dino Figure Figurine Kids Toy Gift $9.99
Dinosaur Train Inter Action Interactive Talking Derek DeinonychusDinosaur Train Inter Action Interactive Talking Derek Deinonychus $22.00 Syncfuns Baby Toddler T-Rex Dinosaur Halloween Costume Kids CosSyncfuns Baby Toddler T-Rex Dinosaur Halloween Costume Kids Cos $33.99
Lot of 9 James Paul Creatures Dinosaur Figures Nwt - Some DuplicatesLot of 9 James Paul Creatures Dinosaur Figures Nwt - Some Duplicates $13.00 Jurassic World Dominion Extreme Damage Atrociraptor Action Figure MatelJurassic World Dominion Extreme Damage Atrociraptor Action Figure Matel $7.90
Compsognathus Dinosaur Model Figure Toy Movable Mouth Jurassic Gift for KidsCompsognathus Dinosaur Model Figure Toy Movable Mouth Jurassic Gift for Kids $11.84
Click to see more Dinosaur items at www.ebay.com
Prices current as of last update, 10/14/24 6:41pm.

Home Contact Resources Exchange Links eBay