宇宙的尺度

tigerb

                               
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Scapanorhynchus
Scapanorhynchus had an elongated, albeit flattened snout and sharp awl-shaped teeth ideal for seizing fish, or tearing chunks of flesh from its prey. It was a small shark normally measuring about 65 cm, though the largest species, S. texanus, is thought to have reached up to 3 m (10 ft) in length, about the size of a modern goblin shark.

Fossils have been found in Europe, Africa, Southwestern Asia, Australia, New Zealand and South America.

                               
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Orthacanthus
Orthacanthus was the apex predator of freshwater swamps.Members of the genus had a long spine growing from the back of their skull and a very long dorsal fin, which ran all along its back giving it an eel-like appearance. Its body reached nearly 10 feet (3 meters) in length and the shark possessed a peculiar set of double-fanged teeth.

Fossils have been found in Europe and North America.

                               
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Evolution of Megalodon
Otodus Obliquus ---> Carcharocles Auriculatus ---> Carcharocles Angustidens ---> Carcharocles Chubutensis ---> Carcharocles Megalodon.

In my opinion,the coolest name for any animal which is Carcharocles Megalodon,a name which belonged to the greatest predator that ever existed on this Planet.

[GoogleDrive]1K_XPFdpeELSucPyfwig6jVMXaDorRfPS[/GoogleDrive]
Size comparison of sharks (Prehistoric and present day sharks ) Reuploaded

tigerb

                               
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Stethacanthus
Stethacanthus was only around 70 cm (2.3 ft) long and had a typical shark-like appearance. It had an unusually shaped dorsal fin, which resembled an anvil or ironing board.

Fossils have been found in Europe and North America.

                               
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Dunkleosteus
Dunkleosteus is a heavily armored fish that had the second most powerful bite of any fish next to Megalodon. Instead of teeth, it possessed two pairs of sharp bony plates which formed a beak-like structure. It was about 20 feet in length and weighed around 1 tonne or more.

Fossils have been found in in Morocco, Belgium, Poland, and North America.

                               
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Leedsichthys
Leedsichthys is the largest known member of the bony fishes. The largest extant bony fish is the Ocean sunfish, being with a weight of up to two tonnes. Leedsichthys is one of the largest fish that ever lived. It reached lengths of 40 - 55 feet and weighing 30 - 35 tonnes.

In the image, the Leedsichthys is compared to the largest fish alive today, the Whale shark which is 30 to 40 feet long and weighing 15 to 20 tonnes.

Fossils have been found in Europe (England, France, Germany, UK) and South America (Chile).

                               
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Xiphactinus
Xiphactinus were voracious predatory bony fish that could swallow large prey. It measured about 4.5 to 6 m (15 to 20 feet) long and weighed up to 2 tonnes.

Fossils have been found in United States, Europe, Australia, Canada and Venezuela.

[GoogleDrive]1kxLaQL28QXOfVuBIYVLNPY3E59FjDcqT[/GoogleDrive]
Size comparison of shark species

tigerb

                               
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Extinct Park - Stegosaurus

                               
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Tyrannosaurus Rex
The "Tyrant lizard King" is the best known of all Dinosaurs.It is the most famous of all the dinosaurs or all the prehistoric animals for that matter.T-Rex is one of the largest meat-eating Dinosaurs, measured upto 40 feet long and weighed 6 - 8 tonnes.It's head and neck were so powerful with teeth the size of bananas, that is the largest tooth of any carnivorous dinosaur measuring up to 12 inches (30 cm) in length.T.Rex had the powerful bite of any extinct or living terrestrial animal ever.It had a bite force of 12,800 pounds and could eat up to 500 pounds of meat and bones in one bite!!   

Fossils have been found in North America(Colorado,Montana,New Mexico,North/South Dakota,Texas,Utah,Wyoming) and Canada (Alberta and Saskatchewan).

                               
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Triceratops
Triceratops is one of the most recognizable and famous dinosaur.Triceratops is armed with three horns and it's neck heavily armored with a protective solid bony frill.Triceratops could stand about 9.5 - 10 feet tall or more,26 - 30 feet long and weighed 6 - 12 tonnes.Fossils have been found in North America (Colorado,Montana,South Dakota,Wyoming) and Canada (Alberta and Saskatchewan).

補充內容 (2018-8-25 03:54):
[GoogleDrive]1g6rVdYRl0--I5CjU0ZkFMLNKaWymTyIi[/GoogleDrive]
Stegosaur family species comparison

tigerb

                               
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Allosaurus
The common killer of the Jurassic period. This apex predator was 28 - 32 feet long and weighed around 2.5 tonnes.
Stegosaurus
A large plated Dinosaur with an insane small head and indeed one of the most famous and recognizable Dinosaurs.

S.armatus

Length : 30 feet
Weight : 5 tonnes

(Human - 6 feet tall)

                               
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Brachiosaurus
It is no longer the largest dinosaur but still among the famous dinosaurs. Brachiosaurus is one of the tallest and heaviest dinosaurs of all time. It could stand about 40 to 50 feet + and weighed 35 to 50 tonnes.

Neck length increased, based on the skeletal reconstruction from Nima Sassani.


補充內容 (2018-9-4 06:08):
[GoogleDrive]1RDdEEQdPQ7lEfrZ-Met6FqemiR9BfuZU[/GoogleDrive]
（史前巨物系列）史前巨魚利茲魚，地球上最大的魚類

tigerb

                               
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Ankylosaurus
Ankylosaurus is a genus of armored dinosaur.The largest known ankylosaurid, Ankylosaurus measured up to 6.25 m (20.5 feet) in length and weighed upto 6 tonnes. It was a quadrupedal animal, with a broad, robust body. It had a wide, low skull, with two horns pointing backwards from the back of the head, and two horns below these that pointed backwards and down.

Fossils have been found in North America.

                               
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Velociraptor
Velociraptor was a mid-sized dromaeosaurid, with adults measuring up to 2.07 m (6.8 ft) long and weighing up to 15 kg (33 lb).

It is one of the dinosaur genera most familiar to the general public due to its prominent role in the Jurassic Park motion picture series. In real life, however, Velociraptor was roughly the size of a turkey, considerably smaller than the approximately 2 m (7 ft) tall 80 kg (180 lb) reptiles seen in the films.

Fossils have been found in China.

                               
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Pteranodon
Pteranodon is among the largest Pterosaurs, with wingspans over 20 ft.Unlike earlier pterosaurs such as Rhamphorhynchus and Pterodactylus, Pteranodon had toothless beaks, similar to those of birds. Pteranodon beaks were made of solid, bony margins that projected from the base of the jaws. The beaks were long, slender, and ended in thin, sharp points.The pteranodon was very light for its size.It weighed only around 25 kg(55 pounds) or more.


補充內容 (2018-8-28 05:39):
[GoogleDrive]1a56jfCcoryWKOseJhW3xMTTg_dEe0S12[/GoogleDrive]
Megaraptor family species comparison

tigerb

                               
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Utahraptor
Utahraptor is the largest known member of the dromaeosaur family. It was 6-7 meters (20-23 feet) long and weighed somewhat less than 500 kg (1,100 lb). Like other dromaeosaurids, utahraptor had large curved claws on their second toes,that was about 9.5 inches (24 cm) long!

Fossils have been found in North America.

                               
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Extinct Park - Tyrannosaurus Rex
This is the first animal to enter the Extinct Park and it doesn't need any introduction.

Even though there is plenty of food for the Tyrannosaurs,the Park rangers accidentally put a cow inside the fence as well.I won't prefer to see a live animal being fed to any carnivore,it's terrible.

Who knows what is going on in the mind of the sleepy T.Rex.Perhaps a huge meat is flying in it's dream.I think the Park rangers should sedate both the T.Rex and move the cow from the fence.

                               
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Mamenchisaurus Sinocanadorum
Perhaps it had the longest neck of any Dinosaur or any animal for that matter. Neck alone could be 50 feet or more.One of the largest Dinosaurs,at a length of over 115 feet and weighing upto 60 tonnes or more.

(Here it is seen at an astonishing 68 feet height. Perhaps it might be able to lift its neck further upright and that would give a height of 70 feet !!)

(Some Sauropods may have held their necks somewhat horizontally but still they might be able to lift their necks vertically sometimes.After all, why a land animal should have a long neck ? Probably to reach the high vegetation.)


補充內容 (2018-8-27 12:55):
[GoogleDrive]18nIWbzD6YRpvz5Yf9g7AteusekJ8WSuu[/GoogleDrive]
Utaraptor attacking small Iguanodon

tigerb

                               
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Mosasaurus
Mosasaurus is a genus of mosasaurs, extinct carnivorous aquatic lizards. They are some of the fearsome predators to ever inhabit the oceans. Mosasaurus was also more robust than related mosasaurids. The skull was more robust than in other mosasaurids, and the lower jaws attached very tightly to the skull. They had deep, barrel-shaped bodies, and with their fairly large eyes, poor binocular vision, and poorly developed olfactory bulbs. The largest species Mosasaurus hoffmanni reached 15 - 18 m (50 - 60 ft) in length and weighed about 15 - 20 tonnes.

Fossils have been found all over the world including Australia, Europe, New Zealand, Russia, Turkey, the Middle East, Africa, North America, South America and even in islands off the coast of Antarctica.

                               
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Torosaurus
Torosaurus is among the largest ceratopsians.It possessed one of the largest skulls of any known land animal.The frilled skull reached over 2.77 metres (9.1 ft) in length.Torosaurus was about 21-25 ft in length and weighed 4 - 6 tonnes.

Fossils have been found in North America (Colorado,Montana,North Dakota,South Dakota,Utah,Wyoming) and Canada (Saskatchewan).

                               
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Torvosaurus
Torvosaurus was a large, heavily built megalosaurid that could grow to a length of about 10 m (33 ft) and weighed as much as 3.6–4.5 tonnes.

Fossils have been found in Europe and North America.


補充內容 (2018-8-20 09:31):
[GoogleDrive]10EbpXmyUSFiw7BTJpF_2m7iEqXe4SVRU[/GoogleDrive]
Mosasaurs vs Cretoxyrhina mantelli

tigerb

                               
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Kentrosaurus
Kentrosaurus is a mid sized stegosaurian. It had a small, elongated head with a beak used to bite off plant material. It had a double row of small plates running down its neck and back. These plates gradually merged into spikes on the hip and tail. Kentrosaurus was about 4.5 - 5.5 m (15 - 18 ft) in length and weighed about 1 - 2 tonnes.

Fossils have been found in Africa.

                               
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Antarctopelta
The first dinosaur ever discovered in Antarctica was Antarctopelta. It was a medium-sized ankylosaurian reaching about 4m (13 ft) long.

                               
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Indosuchus
Indosuchus was a midsized abelisaurid which was about 6 - 7 m(20 - 23 ft) long or more and weighed in the neighborhood of 1 - 2 tonnes.

Fossils have been found in India.




補充內容 (2018-9-3 12:15):
[GoogleDrive]1MGrgp5QKTmlSSGwAixMpzFMiwVUIxAs9[/GoogleDrive]
Dinosaur Massacre _ Planet Dinosaur _ BBC

補充內容 (2018-9-3 12:23):
Daspletosaurus & Chasmosaurus

tigerb

                               
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Nanuqsaurus
The "polar lizard" Nanuqsaurus, also known as the pygmy tyrannosaur is a medium-sized theropod. It was about 6m (20 ft) long (about half the length of tyrannosaurus rex) and weighed as much as 1000 lbs.

Fossils have been found in the Northern Alaska.

                               
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Ugrunaaluk
Ugrunaaluk is a genus of saurolophine hadrosaurid and contains the species Ugrunaaluk kuukpikensis. It was about 9m (30 ft) long.

Fossils have been found in the Arctic of Alaska.

                               
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Argentinosaurus
Argentinosaurus is one of the largest Dinosaurs to walk the Earth. At a length of 100 to 115 feet and weighing 80 to 90 tonnes.It is among the massive Dinosaurs along with Puertasaurus and Alamosaurus.

                               
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Carcharodontosaurus
Carcharodontosaurus was among the massive carnivorous dinosaurs.It is named after its long sharp teeth with deadly serrations. This 'shark toothed lizard' had enormous jaws, serrated teeth up to eight inches long. Carcharodontosaurus was slightly bigger or equal in size with T.Rex and Giganotosaurus. It was about 43 feet long or more and weighed 7 - 8 tonnes.

Fossils have been found in Africa (Algeria,Egypt and Morocco).

                               
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Spinosaurus
Spinosaurus is the first known semi-aquatic dinosaur and it is the largest land predator. It is the largest carnivorous dinosaur, slightly bigger than Tyrannosaurus Rex.Spinosaurus is the longest of all carnivorous dinosaurs measuring upto 50 feet and weighed about 6 - 8 tonnes.

Fossils have been found in Egypt and Morocco.

                               
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Gigantophis
Gigantophis is one of the largest snakes to have lived,larger than any living species of snake.It measured about 30.5 to 35.1 feet in length and perhaps weighed upto 500 kg.Gigantophis was once thought to be the largest species of snake in Earth's history,but was later replaced by Titanoboa.

Fossils have been found in North Africa.(Egypt and Algeria)


補充內容 (2018-8-22 08:00):
[GoogleDrive]1FQDystycZN07R2KRbAMg4P4-fUh5tBLN[/GoogleDrive]
Spinosaurus

tigerb

                               
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Palaeophis
Palaeophis is a large marine snake.These species varied broadly in size, Palaeophis casei is the smallest at 1.3 m (4.2 ft) of length, while Palaeophis colossaeus, is the largest at 9 m (30 ft) to 10 m (33 ft)in length, making it one of the largest known snakes.

Fossils have been found in England, France, Denmark,Morocco and Mali.

                               
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Gryposuchus
Gryposuchus is among the largest crocodilians. It grew to a length of 10 metres (33 ft).

Fossils have been found in Argentina, Colombia, Venezuela, Brazil and the Peruvian Amazon.

                               
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Centrosaurus
Centrosaurus was a mid sized ceratopsian that was upto 20 feet long and weighed about 3 tonnes.It possessed single large horns over it's nose.

Fossils have been found in Alberta,Canada.

                               
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Saurophaganax
This giant cousin of Allosaurus measured 35 - 40 feet in length and weighed in the neighborhood of 3 - 4 tonnes.It is among the largest predatory Dinosaurs.

Fossils have been found in New Mexico and Oklahoma.

補充內容 (2018-8-28 06:17):
[GoogleDrive]1l5VYqSOgm2T6q1ebv8j-xxzksBtD01R4[/GoogleDrive]
十大洪荒巨獸在世界上曾經存在過

tigerb

                               
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Cymbospondylus
Cymbospondylus was one of the largest ichthyosaurs, which measured about 20 to 33 ft long. It was also one of the least fish-like of the ichthyosaurs, lacking a dorsal fin and fluked tail. It did, however, have an elongated snout like other ichthyosaurs.

The eel-like tail of Cymbospondylus made up almost half the total body length, and it is possible that the tail was used as a primary swimming mechanism. Like present day sea snakes, Cymbospondylus probably swam by wriggling its body from side to side. The paddle-like limbs of Cymbospondylus would primarily have been underwater stabilizers, and for slowing down the ichthyosaur's swimming speed.

Fossils have been found in Germany and Nevada,United States.

                               
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Kronosaurus
Kronosaurus was among the largest pliosaurs.It had many long, sharp, conical teeth. Kronosaurus was about 30 – 33 feet in length and weighed about 11 tonnes.It's teeth exceed 7 cm in length (the largest up to 30 cm long with 12 cm crowns).



補充內容 (2018-8-25 04:08):
[GoogleDrive]1sKSwqoGy0mS7YnTjHlGXSuf9smZVMVxA[/GoogleDrive]
Pliosaur family species comparison _ Predator x

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Zhuchengtyrannus
Zhuchengtyrannus is one of the largest Tyrannosaur which measured about 33–39 feet in length and weighed up to 6 tonnes.

Your worst nightmare = Zhuchengtyrannus

                               
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TitanoBoa
Titanoboa was the longest, largest, heaviest snake that ever lived. It was longer than a school bus,measuring 13 m (43 ft) in length and weighed about 1,135 kg (1.1 tonnes).  
Later estimates suggest a length upto 14.3 m (47 ft).

Fossils have been found in Colombia,South America.

                               
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Extinct Park - Sarcosuchus

補充內容 (2018-9-3 12:36):
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Sinornithosaurus_ A poisonous bite _ deadly day or night _ Planet Dinosaur _ BBC

補充內容 (2018-9-3 12:42):
Sinornithosaurus vs Jeholosaurus

tigerb

                               
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Parasaurolophus
Parasaurolophus is a hadrosaurid, part of a diverse family of Dinosaurs known for their range of bizarre head adornments. It could grow about 33 feet long and weighs about 3 - 4 tonnes.

                               
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Pachyrhinosaurus
Pachyrhinosaurus is one of the largest Ceratopsians, weighing about 4 tonnes. Instead of horns, the skulls of Pachyrhinosaurus bore massive, flattened bosses, a large boss over the nose and a smaller one over the eyes.

                               
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Chasmosaurus
Chasmosaurus was a ceratopsian of average size. It could grow to a length of 14–16 feet and weighs about 2 tonnes or more.

                               
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Carcharodontosauridae
Carcharodontosaurus Saharicus, Giganotosaurus carolinii, Mapusaurus roseae, Tyrannotitan chubutensis and Acrocanthosaurus atokensis.

Carcharodontosaurids were a group of carnivorous theropod dinosaurs. They included some of the largest land predators ever known, such as giganotosaurus, mapusaurus, carcharodontosaurus,and tyrannotitan, all rivaled or slightly exceeded tyrannosaurus in length. Carcharodontosaurids had huge narrow skulls with sharp serrated teeth.

                               
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Diabloceratops
Diabloceratops was a medium sized, moderately-built Ceratopsian.It could grow about 18 feet in length and weighing about 2.5 tonnes or more.

                               
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Iguanodon
Iguanodon was the second prehistoric animal after Megalosaurus, to be identified as a Dinosaur. It could grow about 33 feet in length and weighs about 3 - 5 tonnes.

                               
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Siamosaurus
Siamosaurus is a midsized Spinosaurid theropod Dinosaur. It was over 30 feet long and could weigh 3 - 4 tonnes.



補充內容 (2018-8-25 04:03):
Carcharodontosauridae原圖(放大圖片)

補充內容 (2018-8-25 04:05):
[GoogleDrive]1EcDpgZuy-pjPVCd5jyJ8tsgi2yxcfkC3[/GoogleDrive]
Carcharodontosaur family species comparison

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Baryonyx
Baryonyx is a midsized Spinosaurid theropod Dinosaur. It was about 30 - 33 feet long and weighed 3 - 4 tonnes.

                               
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Ichthyovenator
Ichthyovenator is a Spinosaurid theropod dinosaur. Unlike other Spinosaurids, Ichthyovenator has at least two separate sails.It was about 25 - 30 feet in length and weighed 2 - 3 tonnes.

                               
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Irritator Challengeri
Irritator Challengeri is a small relative of the Spinosaurids.It could grow to a length of 26 feet and weighs 2-3 tonnes.


補充內容 (2018-8-28 06:25):
[GoogleDrive]1dZuzdJarTy9GZHA-CecgBMsckDPkOwc-[/GoogleDrive]
史前最恐怖的十大水怪排行榜 _ Meow Meow

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Ostafrikasaurus
Perhaps it might be the earliest Spinosaurid. Even though if it could belong to this group, it might not have looked exactly as Spinosaurids.

                               
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Oxalaia
Oxalaia is one of the largest theropods and the second largest Spinosaur. It could measure 39 to 46 feet in length and weighs 5 to 7 tonnes.

                               
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Magnapaulia Laticaudus
Magnapaulia Laticaudus is one of the largest Hadrosaurs. It is one of the largest Ornithischians, only being surpassed by Shantungosaurus.

sameerprehistorica.deviantart.…

It could grow to over 41 feet in length and weighing 12 tonnes or more.


補充內容 (2018-9-3 12:51):
[GoogleDrive]1kDa9QcRGhnjq8y7R81NLUyFme_W9EGmL[/GoogleDrive]
Biggest Dinosaur Ever! Argentinosaurus _ Planet Dinosaur _ BBC

補充內容 (2018-9-3 12:55):
Argentinosaurus  & Skorpiovenator

tigerb

                               
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Spinosaurus V2
Spinosaurus is the first known semi-aquatic dinosaur and being the largest land predator ever. It is the largest carnivorous dinosaur, bigger than Tyrannosaurus Rex. Also it is the longest of all carnivorous dinosaurs measuring upto 50 feet and perhaps weighing 8 - 10 tonnes.

                               
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Sauroposeidon
Standing at least 60 feet high !! and weighing some 60 tonnes or more.It was one of the tallest and heaviest Dinosaurs. It's neck alone was 40 feet,as long as a school bus.

                               
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Paralititan
It is one of the enormous Dinosaurs that ever lived.At over 85 feet and weighing upto 60 tonnes.

                               
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Diplodocus Longus
This animal formerly known as Seismosaurus.It is one of the longest Dinosaurs,measuring upto 110 feet in length and weighing some 25 tonnes or more.

[GoogleDrive]1UZxr9RwIK2hGHFGyVe4BIxqIJZjrSUcX[/GoogleDrive]
Dinosaurs in Dinomaster - Size Comparison (2)

tigerb

                               
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數種大型蜥腳下目恐龍的體型比較圖。分別為：雙腔龍（紅）、巨體龍（灰）、阿根廷龍（紫）、超龍（橘）、梁龍（綠）、波塞東龍（藍）

                               
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易碎雙腔龍（橘）、高雙腔龍（灰）與人類的體型比較圖
高雙腔龍（A. altus）、易碎雙腔龍（A. fragillimus）

                               
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數種巨型蜥腳下目恐龍的體型比較圖。分別為：阿根廷龍(紅)、馬門溪龍(綠)、超龍(橘)、梁龍(紫)、富塔隆柯龍(藍)

                               
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雙腔龍屬（學名：Amphicoelias）是蜥腳下目梁龍科恐龍的一個屬，當中包括了已知體型最大的恐龍，易碎雙腔龍（A. fragillimus）。雙腔龍的學名是由古希臘文的「amphi」（意即「兩面」）及「koilos」（意即「空腔」或「空洞」）而來，所以中文翻譯為雙腔龍。根據唯一的骨頭化石，易碎雙腔龍的長度估計約達40-60公尺，而體重可能約為122公噸，可比現今最重的動物藍鯨。但在1870年代描述這種恐龍後不久，這塊唯一的骨頭就遺失了，存有的證據就只有一些插圖及紀錄。雙腔龍的化石，都發現於莫里遜組的第6地層帶。

                               
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Name: Amphicoelias (Double hollow).
Phonetic: Am-fee-see-le-as.
Named By: Edward Drinker Cope - 1878.
Synonyms: Amphicoelias latus.
Classification: Chordata, Reptilia, Dinosauria, Saurischia, Sauropodomorpha, Sauropoda, Diplodocoidea.
Species: A. altus (type), A. fragillimus.
Diet: Herbivore.
Size: Uncertain due to lack of and subsequent loss of remains, but estimated between 40 and 60 meters long.
Known locations: USA, Colorado.
Time period: Kimmeridgian to Tithonian of the Jurassic.
Fossil representation: Fragmentary and isolated remains, original fossils are now lost.

                               
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這是易碎雙腔龍與藍鯨，非洲象，人類的體積對比圖

                               
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巨體龍屬（學名：Bruhathkayosaurus）其學名是由梵語的「बृहतः」及「काया」，加上古希臘文的「蜥蜴」，意即「巨大身體蜥蜴」。而巨體龍很有可能是現今所發現最巨大的恐龍之一。而這個主張是由Yadagiri及Ayyasami於1989年所提出的，但是卻一直備受質疑及討論。

巨體龍的脛骨有2公尺長，這要比阿根廷龍1.55公尺長的脛骨長29%。比較上前肢也有類似的結果。雖然巨體龍的肱骨並不完整，經推斷有2.34公尺長，而阿根廷龍的肱骨長1.81公尺，是阿根廷龍的1.3倍。
根據Mickey Mortimer的早期估計，巨體龍可達40-44公尺長、14公尺高，而體重估計約達175-220噸之間。Mickey Mortimer後來更改估計值，將巨體龍的長度被減至28-34公尺，而沒有提出體重估計值。在2008年，古生物學家Matt Wedel在《Sauropod Vertebra Picture of the Week》網站上公布新的數據，他將巨體龍與阿根廷龍相比，估計巨體龍的體重約為139公噸。相比較下，阿根廷龍就只有34.6公尺長及80-100噸重。另一類泰坦巨龍類的潮汐龍，則可能只有31.9公尺長及65-80噸重。
這些巨大的蜥腳下目恐龍，大部分化石僅有部份或碎片的身體骨骼，所以難以確定其體型的估計值。牠們的長度是將已有的屍體化石，與較完整的近親恐龍骨骼作出比較，按比例作出計算。但是這種推斷的方法只是較有系統的估算，而尾巴的長度也很難去推定。體重的估計就更為困難，因為只有發現很少的軟組織化石。再者，縮放比例是基於相同的體型比例，但事實可能並非如此。古生物學界並非十分清楚泰坦巨龍類的體型比例，因為目前只有有限的完整標本。如果巨體龍的體重估計值正確，只有藍鯨的體重能與之相比，紀錄上最大的藍鯨估計約有30公尺長，而體重估計約176公噸重。
在恐龍之中，只有愛德華•德林克•科普（Edward Drinker Cope）命名的易碎雙腔龍可以與巨體龍相比。易碎雙腔龍約58-62公尺長，比巨體龍更大，但是種體型瘦長的梁龍科，體重估計只有約120噸重。不幸的是易碎雙腔龍的唯一化石已在100年多前已經遺失。

                               
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[GoogleDrive]1AqFoMumXwJWsm3sfXDodIGqfFTMCPJ7g[/GoogleDrive]
DINOSAUR Size Comparison. Paleoart

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Pentaceratops
Pentaceratops is one of the largest Ceratopsians.It measured about 20 - 24 feet in length and weighed about 5 - 6.5 tonnes.It had the longest skull of any land vertebrate,measured upto 10.5 feet.

Fossils have been found in New Mexico, North America.

                               
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Puertasaurus
It is among the largest Dinosaurs to roam the Earth. Puertasaurus could grow to 115 - 125 feet long and weighing a colossal 110 tonnes. It is among the massive Dinosaurs along with Argentinosaurus and Alamosaurus.

                               
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Alamosaurus
Alamosaurus is among the largest Dinosaurs that ever lived. It could grow to over 100 feet long and weighing 80 - 100 tonnes. It is among the massive Dinosaurs along with Argentinosaurus and Puertasaurus.



補充內容 (2018-9-5 07:13):
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Quetzalcoatlus

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Styracosaurus
A medium-sized ceratopsian dinosaur which had six long horns extending from its neck frill and a 2-foot-long nose horn.This spiked lizard could grow about 18 feet long or more and weighing 3 tonnes.

                               
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Deinocheirus
Perhaps this is the most weirdest of all the Dinosaurs. It stood about 16 feet tall, 36 feet long and weighed 6.5 tonnes. It's arms were among the largest of any bipedal dinosaurs at upto 8 feet with large, blunt claws on its three-fingered hands.Deinocheirus was the largest Ornithomimosaurian.

Fossils have been found in Mongolia,Asia.

                               
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Mapusaurus
Mapusaurus was among the largest carnivorous dinosaurs. It measured about 33 - 40 feet in length and weighed 5 - 7 tonnes or more.

Fossils have been found in Argentina,South America.


補充內容 (2018-9-3 13:13):
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Dinosaur Cannibalism _ Planet Dinosaur _ BBC ( Majungasaurus -an abelisaurid- )

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Tarbosaurus
Tarbosaurus is one of the largest Tyrannosaur which measured about 33–39 feet in length and weighed 5 - 6 tonnes.

                               
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Rajasaurus
Rajasaurus is a genus of carnivorous abelisaurian theropod with an unusual head crest. It is one of the largest abelisaurids, measuring about 25 - 30 feet in length and weighed about 3 tonnes.

Fossils have been found in India. (The discovery represents the first skull ever assembled of a dinosaur of any kind in India.)

                               
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Acrocanthosaurus
Acrocanthosaurus is one of the huge carnivorous dinosaur. This high-spine lizard which measured about 36 - 40 feet long and weighing in the neighborhood of 5 - 6 tonnes.

Fossils have been found mainly in the U.S. states of Oklahoma,Texas and Wyoming.





補充內容 (2018-9-5 07:27):
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Allosaurus species comparison _ Bonus_ 19IGR Track maker