'Water monsters' eating shark meat may be human ancestors

The giant sea monster up to 7m long can be a human ancestor, according to Chinese scientists.

A fossil discovered in Ningxia, China, has created a debate over the past century: is the ancestor of humans and other four-legged animals a prehistoric sea monster?

Artwork of prehistoric rhizodont "aquatic monsters".

All members of the four-legged animal (the scientific name is tetrapod) , including mammals, reptiles and amphibians, are thought to have originated from the lobed fin fish. This fish once moved from the aquatic habitat to the mainland about 360 million years ago.

However, the specific species of fish that deserves our thanks for the evolution of today is still the mysterious powder, according to the Morning Flower Post Office.

In the lobster fin, rhizodon t is the largest freshwater fish known on the planet. Some estimated to be 7 meters long. Their crocodile-like jaws and fangs are designed to eat large shark meat.

Rhizodont has a special jaw set designed to eat shark meat.

This extinct fish species has been identified as an ancestor of humans.

In the 19th century, famous paleontologists like Richard Owen, Thomas Huxley and Louis Agassiz argued vigorously about whether rhizodont climbed to shore to land. The bone layout of this creature is similar to that of a four-four animal that lives inland.

In addition to rhizodont, there is another fish in the class of finned fish listed as 'suspect'. That is osteolepidida - the organism also develops many characteristics of 4-legged animal breeds.

In recent decades, scientists have been more inclined to osteolepidida because many of their fossils appear to be related to primitive tetrapods.

However, a new test in China is bringing the "water monster" rhizodont back into the list. Tests performed on fossils of organisms were found in Qingtong Valley in Ningxia in 2002.

The layer of lobster fin ever moved from the aquatic habitat to the mainland about 360 million years ago.

Zhao Wenjin, author of the paper published in Nature Ecology and Evolution, said: "What we found was that rhizodont with amazing resemblance to four-legged animals.

"Rhizodont can play a central role in the evolution of the underwater habitat to the surface. It may be our ancestor , " said Zhao, a researcher at the Chinese Academy of Sciences in Beijing. , declare.

But there is a problem.

Fossils of rhizodont are found in Ningxia, China.

According to Zhao, fossils discovered in Ningxia lost most of the first part. This happens because of two possibilities.

One is to rhizodont defeat many other fish species in the land-based race. Secondly, rhizodont tried to move to the mainland but failed.

Zhu Min, the lead scientist of the study, said there could be only one winning fish because all four-legged animals originated from a single genus of lobed fish.

"Percent of rhizodont is our ancestor that seems to be 50-50," Zhu said.

"We are also looking for new fossils. They will help clarify the important evolutionary chapter that still has many mysteries," he said.