Since the first single-celled organisms appeared 3.9 billion years ago, the Earth has given birth to one batch after another. These creatures have gone through many ups and downs from scratch and from being to nothing, most of which have gone extinct, leaving behind today's creatures.
The change of species is already common in nature. After extinction, the ancient creatures, under the excavation of humans, finally reappeared in the sky, and a fossil made us let out a sigh of amazement. Interestingly, compared with modern organisms, paleontology always seems so huge that we sigh that "if humans are there, they will not survive for ten minutes." So, how big are these archaic creatures?
A netizen is also full of curiosity about this, and put his curiosity into action, drawing a few comparison charts of ancient creatures, clearly showing the size of these ancient creatures, let's take a look at it.
Due to space limitations, let's just talk about some important content.
First of all, everyone is most concerned about the contrast between spinosaurs and Tyrannosaurus rex (that is, tyrannosaurs). At present, the largest Tyrannosaurus rex confirmed by scientists is a fossil found in Canada, called "Su", with a body length of 12.2 meters and a weight of 10 to 12 tons.
Scientists have not yet reached a conclusion about the true size of Spinosaurus, because the fossils found so far are incomplete. Even though Spinosaurus is longer than T. rex, it may be slightly inferior in weight. Therefore, for now, the largest recognized carnivorous dinosaur is still a Tyrannosaurus rex.
This picture is a continuation of the previous one.
It is also a comparison of carnivorous dinosaurs.
These in the picture belong to the creatures of the family Canglong. It should be noted here that the dragon is not a dinosaur, but lived in the same era as the dinosaur. Like the Tyrannosaurus Rex, the Dragon lived for a short time. They appeared about 70 million years ago and withdrew from the stage of history 65 million years ago along with the age of the dinosaurs.
The same is the dragon, and the actual comparison with people. From this picture, we can clearly see how small human beings are. Of course, the fossils of the dragons discovered by humans are also incomplete, and many of them are made up by humans based on the parts that have been found.
Note that the units here are not meters, but feet. The largest of these, breviparopus, is one of the largest dinosaurs known to scientists, and according to a 90-meter-long footprint fossil in Morocco, each of their footprints has a diameter of 1 meter. According to estimates, the body length of this dinosaur is between 34 and 37 meters, and the weight is about 70 tons.
Of course, speculating on the size of dinosaurs according to footprints is not necessarily completely reasonable. If this method is followed, the length of the fragile double-cavity dragon is probably 58 meters, which is too scary. Scientists are skeptical of this data, and they may prefer to believe the 35-meter claim.
In fact, many scientists still believe that the largest animal ever seen on Earth is the modern blue whale. The big thing here is not the length, but the weight. The largest blue whale found so far, 33 meters long and weighing 181 tons.
The dragon is not a dinosaur, and the pterosaur is not a dinosaur... Aeolian pterosaurs are believed to be the largest flying animals that have ever appeared on Earth, and their wingspan can reach a staggering 11 meters. However, their wings are very large, and their torsos are actually very small, so their weight is actually not so amazing, generally only more than 200 kilograms.
In this picture, it is probably the Argentine dragon that is more famous. Argentinosaurus was also one of the largest dinosaurs, but due to the incomplete fossils, it is also difficult to determine the actual size. We only know that a fossil of the spine of an Argentine dragon that has been excavated by humans is 1.5 meters high and 1.1 meters wide, which shows how huge it is. The topmost megalozoosaurus is probably even larger, because the humerus and tibia fossils excavated by humans are about 30% longer than those of Argentine dragons.
Chilong is a relatively small dinosaur, with a body length of about 2 meters. Despite their small size, their bite force is also amazing, earning them a place in the brutal age of dinosaurs.
Compared to these ancient creatures or modern sea creatures, African elephants appear insignificant, as if they could be trampled to death by them.
This is a comparison of the skulls of ancient marine creatures, in fact, we have found more, that is, their skull fossils. Therefore, it seems more reliable to compare with fossil skulls.
Finally, here comes a big collection...
Well, today I will introduce this, do you enjoy watching it?