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Paleontologists discovered Linxia giant rhinoceros |
Reveal how the giant rhinoceros crosses the Qinghai-Tibet Plateau |
The giant rhinoceros, which went extinct 21 million years ago, is the largest land mammal ever surviving in the history of the earth-its weight is the total weight of four adult African elephants, and its head can reach up to 7 meters
.
This behemoth that feeds on canopy leaves like a giraffe mainly lives in Asia, especially today in China, Mongolia, Kazakhstan and Pakistan
.
China Kexue Yuan and Paleoanthropology of Vertebrate Paleontology Deng Tao US cooperation team of researchers led, in the Late Oligocene strata 26.
5 million years ago Linxia Basin, northeastern margin of the Tibetan Plateau, we found a length of over one meter, and Complete skull with lower jaw
.
It is considered to be a new species of giant rhinoceros-Linxia giant rhinoceros, which may solve the doubts of paleontologists
.
Academy of Sciences
According to Deng Tao, there are 6 different genera of rhinoceros.
Among them, rhinoceros is the most widely distributed rhinoceros, from East Asia to Eastern Europe
.
Linxia rhinoceros also belongs to the genus rhinoceros
.
Deng Tao and others conducted a new phylogenetic analysis based on the addition of a large number of skulls, teeth and back bones, and solved the origin and evolution relationship between the different giant rhinos separated from the north and south sides of the Qinghai-Tibet Plateau-the most obtained The simple evolutionary tree shows that the relationship between the rhinoceros genus and the Aral Sea rhinoceros of the late Eocene is closer than that of the Junggar rhinoceros and the Turpan rhinoceros, and the latter two genera of the late Oligocene form a branch
.
In the rhinoceros branch, the new phylogenetic analysis indicates the beauty of Xinjiang’s giant rhinoceros from the Mongolian Plateau through the Yellow River rhinoceros in the Lanzhou Basin, the Asian giant rhinoceros in Kazakhstan, and the Bugatti giant rhinoceros in Pakistan.
The gradual evolutionary sequence of giant rhinoceros and Linxia giant rhinoceros in Gansu
Deng Tao further explained that in the Eocene, Asia and Europe were separated because the Middle East and western Siberia were still occupied by sea water
.
"The southwestern depression of the Tarim Basin extends eastward to the Altyn Mountains, with marine deposits from the Eocene to the early Miocene, indicating the existence of east-west extending seas
in this area .
In the Oligocene, the proliferation of giant rhinoceros from the Mongolian Plateau to South Asia will proceed along the east coast of the Tethys Ocean through some low-elevation valleys in the hinterland of Tibet
.