Scientists found on the territory of Poland is extremely unusual remains of dicynodonts, the oldest direct ancestor of humans and all other mammals, indicating that these animals are not inferior in size to elephants and dinosaurs. Description of the fossils was presented in the journal Science, writes RIA Novosti.
“It’s just a landmark discovery that happens once in a lifetime. Detection “lisovichi” radically changes our understanding of the evolutionary history of the late dicynodonts, the closest relatives of the mammals in the Triassic time period. Now we are trying to understand what made them to reach the same gigantic proportions as the dinosaurs”, says Suleyman Tomasz (Tomasz Sulej) from the Institute of paleontology of the PAN in Warsaw (Poland).
The first mammals appeared on the planet approximately 220-225 million years ago, towards the end of the Triassic period, along with the first primitive dinosaurs. After his appearance, the ancient warm-blooded animals quickly spread throughout the Land.
Most scientists believe that the first primitive members of our class were relatively small in size and mass. Judging by the structure of their teeth, they ate a monotonous diet, mainly insects. Main boom their evolution began only after the dinosaurs became extinct, not allowing them to occupy new ecological niches.
Suleyman and his colleague Grzegorz Nedzvedski (Grzegorz Niedzwiedzki) found that it was not so, conducting excavations in the South of Poland, near the village of Lisowice. Here lie rocks, formed about 210 million years ago in the late Triassic period, some ten million years after the Permian extinction, which destroyed most of the major zoroastro.
Over the past ten years, Polish scientists have found in Lisowice over a thousand bones and other fossils in the vicinity of this village, most of which belonged to primitive dinosaurs, crocodiles, and various small
When Suleyman and his colleagues have begun to analyze these remains, they found that some of them did not belong to the dinosaurs, and record major dicynodont, whose length was about 4.5 meters height — 2.6 meters, and the weight was close to nine tons. The creature was almost two times more than any other theromorph or relative of mammals, and not inferior in size to African elephants.
Scientists called it “lisowice of Bojanus” in honor of the village, where were found the remains of this giant, as well as Ludwig Bojanus, German zoologist and member of the Petersburg Academy of Sciences, who lived a long time in the Imperial Vilna, modern Vilnius.
Like other dicynodonts, and the giant was most likely a herbivore creature. His rate of growth, judging by the bone structure was the same fast, as in modern mammals and dinosaurs, which speaks in favor of his teplokrovnosti.
Interestingly, comparison of different bone lisovichi and his four-legged herbivorous dinosaurs shows that they had approximately similar dimensions and mass. If this is true, then, as noted by Suleyman, the question arises. As they coexisted with each other and what made the first disappear and the second to become the dominant creature on Earth in the next 150 million years?
As previously reported “FACTS”, paleontologists have found why Neanderthals had a big nose.
We read in the Telegram channel, Facebook and Twitter