The dinosaurs that we all know are always gigantic, of incredible sizes and with an impressive presence that scares and amazes us at the same time. But… Did you know that all dinosaurs weren’t that big?

The size differences between the dinosaurs were so great that you could find one that was the size of a pigeon to another that was as tall as a 6 or 7-storey building over 30 meters tall.

To get to know them all, today we are going to examine several of the smallest dinosaurs that ever existed and as many of the largest that you will surely already know.

Big Dinosaurs

There has been no animal larger in history than the dinosaur if we rule out the blue whale, which could be similar in size to many of them and even equal the largest.

Below you can see the three largest dinosaur specimens that have been found. Even in the recreations you can appreciate the impressive size they had.

AmphicoeliasAmphicoelias, the giant dinosaur

It is the largest dinosaur that has been found in all of history. Its estimated size is about 40-60 meters and doubtless there is none approaching it in the whole species. This gigantic dinosaur is part of the diplocid sauropod order, it is estimated that it inhabited what is now North America and became extinct at the end of the Jurassic. How could such a large dinosaur become extinct?

gatesaurPuertasaurus, the most unknown

The Puertasaurus is a very unknown dinosaur, of which only four vertebrae have been found in the whole world. Of course, these vertebrae measure 1.7 meters wide and 1 meter long, so their estimated height according to calculations and studies is up to 40 meters. Belonging to the order of the Saurischia; It inhabited the land at the end of the Cretaceous in what we now know as South America.

turiasaurTuriasaurio, the Spanish dinosaur

Several dinosaurs have been found in Spain and this is probably the most important of all. As its name suggests, it was found in Teruel and has the honor of being the largest dinosaur ever found in all of Europe. It was about the size 37 meters. In addition, you can see an impressive recreation of this dinosaur in Teruel at the Dinópolis. We recommend you go see it if you can because it is brilliantly represented and you will love it.

SauroposeidonSauroposeidon, the lake and large dinosaur

Without a doubt it was a particularly striking dinosaur due to its large size, they could reach 35-40 meters in length. The neck of this dinosaur could reach up to 10 m in length. As for the length of its body from head to tail, it measured approximately 30 meters more or lessand his head could rise about 18 meters from the ground which allowed him to reach the tops of the trees.

supersaurusThe Supersaurus, the super lizard

It was a dinosaur that lived in the late Jurassic, described for the first time in 1985. It is considered one of the largest diplodocids. The supersaurus could measure up to 34 meters long, it could also reach heights of up to 16 meters and weigh about 40 tons. Despite its large size, it can be said that it had a relatively small skull, very characteristic of dinosaurs belonging to the Saurischia order.

SpinosaurusSpinosaurus, the giant carnivore

Although we are talking about large herbivorous dinosaurs, in this list of giant dinosaurs we also have carnivorous dinosaurs. in this case the Spinosaurus. One of the most feared predators of the Cretaceous. It had a mouth like that of a crocodile, it had a spine on its back that had the appearance of a huge sail. Said sail could reach a height of 2 meters; its height in general could be about 6 meters approximatelyAs for its length, it could easily reach 17 meters in length and weigh 4 tons.

ArgentinosaurusThe Argentinosaurus, The Giant of the South

It inhabited the earth about 97 million years ago in the Upper Cretaceous. The Argentinosaurus stands out for being the heaviest of all with about 160 tons of weight. What’s more, It could reach a length of 40 meters and a height of up to 16 meters. We are certainly talking about a great dinosaur. Many times it has been pointed out that it is the largest dinosaur that could exist, however, as you have seen in this article, it was not the largest.

FutalognkosaurusFutalognkosaurus, the chief of the giants

In 2007, the remains of what would be the largest dinosaur in history, the Futalognkosaurus, were found in Argentina. According to the researchers. This dinosaur lived about 87 million years ago. The length of these dinosaurs was approximately 32-34 meters, it is estimated that they weighed about 80 tons. The first remains were found in 2000 on the shores of Lake Barreales, and later, scientists have found bones of the back, neck and legs.

TarbosaurusTarbosaurus, the giant predator

Tarbosaurus is an extinct genus of large, carnivorous and fearsome dinosaurs (carnosaur superfamily). this dinosaur It could measure about 12 meters long, a height of up to 4 metersIt is estimated that it could weigh about 5 tons. It lived on earth about 70 million years ago in the Cretaceous period. Undoubtedly one of the largest predators that could exist.

brachiosaurusBrachiosaurus, a large and heavy dinosaur

In a pseudopod dinosaur, it lived about 150 million years ago in the Jurassic. Remains of this giant have been found in Africa, Europe and North America. It is estimated that this dinosaur could reach heights of up to about 13 meters and reach a length of 25 meters. As for its weight, it is estimated that it was approximately 40 tons. It really was a huge dinosaur in all its dimensions.

paralyzeParalititan, a great family a great dinosaur

In this list of large dinosaurs, we must also highlight the Paralititan, which is a dinosaur that belongs to the sauropod group of the titanosaur family. This dinosaur lived in the middle Cretaceous about 94 million years ago. From its size we must emphasize that it could reach about 30 meters in length and weigh about 60 tons. It had a relatively long neck and fed on the high leaves of trees.

DiplodocusDiplodocus, the long-necked dinosaur

This dinosaur is part of the diplodocid sauropods, it inhabited the earth in the upper Jurassic period about 153 million years ago. Of these dinosaurs, it should be noted that they had a relatively long neck and tail with respect to their body, which made this reptile less heavy than any other large dinosaur on this list. with only approximately 25 tons. About its length it is estimated that it could reach about 33 meters.

BarosaurusBarosaurus, a great dinosaur

A sauropod of the Diplodocus family, habit in the Upper Jurassic about 150 million years ago. His remains were found in the famous Morrison Formation. The same allowed estimating its size. His measurements are very considerable. Getting to measure about 23 meters in lengthAs for its height, it is believed that it could reach 7 meters high and about its weight it is estimated that it could weigh about 23 tons.

ApatosaurusApatosaurus, the clueless dinosaur

One of the family of diplodocus sauropods, this great animal lived in the Jurassic period 155 million years ago, its name means “clueless reptile”. From this we can highlight its large tail and neck; that allowed him reach lengths between 22 to 26 meterson the other hand, could reach 5 meters high and weigh about 25 tons, becoming one of the heaviest dinosaurs that ever existed.

Small Dinosaurs

The dinosaurs, for the most part, were more abundant in small sizes than in large ones. In fact, these were smaller in size than a cat or small dog might be.

Can you imagine a dinosaur with the size of a chiguagua? Well there were 🙂

liaoxiornisLiaoxiornis, the dwarf dinosaur

Probably the smallest dinosaur in existence, it lived during the Lower Cretaceous and was first described in 1999 by Hou and Chen of the Nanjing Institute of Paleontology. This dinosaur is surely the smallest ever found. Its size was 6 centimeters and it had a size, as you can see in the photo, similar to that of a small bird.

EpidemicEpidexipteryxxipteryx, the “ancestor” of the peacock

This dinosaur had a quality very similar to peacocks: it used its feathers to court and attract females. In fact, as you can see in the drawing below, it has a similar shape to the peacock, so who knows if it could be a very distant ancestor of the same. Its size was 25 centimetersalthough much of this was thanks to its long feathers.

MinmiMinmi, the tiny battleship

This dinosaur found in Australia, is part of the ornithischians order of the ankylosaur family. who lived approximately 113 million years ago in the mid-Cretaceous period. It is characterized by being herbivorous and generally fed on small plants. Some research indicates that it could reach a weight of 300 kilograms and lengths of up to 3 meters.

CompsognathusCompsognathus, a small carnivore

This animal is considered the smallest carnivorous dinosaur that ever existed. It lived about 150 million years ago in the Upper Jurassic. They generally feed on small lizards and insects. From its size we can say that it was only 1 meter long, 40 centimeters tall and it is estimated that it could weigh about 3 kilograms. It must be said that he was a good hunter and that he ran at a great speed.

LesothosaurusLesothosaurus, the bipedal lizard

This small dinosaur was an ornithischian that lived in the lower Jurassic, about 200 million years ago. The first remains found of this small dinosaur were in Africa. It is described as a small lizard, very similar to the current ones but which differs from these in its bipedal gait. Regarding its size there is no exact databut it is estimated that it could reach a height of 90 centimeters.

PisanosaurusPisanosaurus, the only one of the family

This dinosaur is the only representative of the Pisanosaurus family. It lived approximately 220 million years ago at the end of the Triassic period, it was herbivorous in nature. From this small dinosaur we can highlight that its weight was approximately 6 kilograms, with only 1 meter long and 40 centimeters high. Although these measurements may vary since they are an estimate based on a fossil found that was not complete.

microceratopsMicroceratop, a nice dinosaur

It is a dinosaur very similar to the triceratops, differing in general terms in its size. In fact, both belong to the Ceratopsia family; family that is distinguished by having horns and a bony plate on its neck. It lived in the Upper Cretaceous about 70 million years ago. As far as your measurements are concerned it is estimated that it could reach 76 centimeters in heightAs for its length, it is calculated that it could reach a length of 60 centimeters and weighed between 8 and 10 kilograms.

wannanosaurusWannanosaurus, a small but mighty helmet

It is a small prehistoric reptile belonging to the Pachycephalosaurus, which lived in the Upper Cretaceous about 80 million years ago. His remains were found in China and correspond to a small skull, jaw and limb parts.. With these fossil remains it was possible to estimate the size of this dinosaur, reaching the conclusion that it could reach up to 1 meter in length.

EuparkeriaEuparkeria, one of the first dinosaurs

This small prehistoric animal lived in the Lower Triassic about 250 million years ago. Belonging to the family of euparkéridos. It was carnivorous and fed on small animals, Its measurements are estimated to be 1 meter long, about 30 centimeters high and could weigh approximately 8 kilograms.. Some scientists point out that it was one of the first dinosaurs to inhabit the earth and gave rise to the era of these great reptiles.

protoavisProtoavis, the test of the evolution

His finding was controversial for the paleontologist world. Since the discovery of him served as evidence to refute the theory that birds evolved from dinosaurs. Which sparked a lot of debate. He lived in the Upper Triassic about 225 million years ago. As regards its size it is known that it could reach lengths of between 30 to 35 centimeters.

LagosuchusLagosuchus, the lizard dinosaur

It lived about 250 million years ago in the Middle Triassic, it was herbivorous and fed on ferns. It belonged to the family of lagosuchids. Their fossil remains are not very complete, however, with them it was possible to classify them and estimate their size. Its dimensions are estimated at 60 centimeters long40 tall and weighing close to 800 grams.

MicropachycephalosaurusMicropachycephalosaurus, the one with the armor on the head

It inhabited the earth 75 million years ago in the Upper Cretaceous, It belongs to the ornithischians order. It was characterized by having a bony helmet on top of its skull that allowed it to fight predators and other males. Its measurements are calculated to be 1 meter long, 30 meters high and 10 kilograms in weight. A very small size so surely his helmet was of little use when facing other predators.

LiaoningsaurusLiaoningsaurus, a bunker from top to bottom

A small representative of the ankylosaur family lived about 122 million years ago in the lower Cretaceous period. This small ankylosaurus, unlike many of its giant relatives, had armor that also covered its lower part as well as its upper part. It is believed that it could reach 34 centimeters in height. Despite its small size, the truth could very well defend itself from predators.

EpidendrosaurusEpidendrosaurus, the smallest dinosaur that ever lived

This is definitely the smallest dinosaur that existed on earth. It belonged to the Maniraptor family, many scientists point out that it most likely would have had feathers. This little guy lived in the Upper Jurassic about 147 million years ago. It is estimated that could reach 15 centimeters in height onlytheir weight could be compared.