Fossils are the remains and imprints of plants and animals that lived on Earth in the long past era. But turns into a fossil only a small part of plants and animals. As a rule, their remains are either eaten by other animals or decomposed by the action of fungi and bacteria. Shells or hard bony skeletons persist longer, but eventually they are destroyed. It was only when the remains are buried in the ground very quickly, before they have time to decompose, they have a chance to survive and turn into a fossil. To the deceased plant or animal was buried rapidly, it is necessary that over it there was a sediment, for example sand or silt. Then his remains were soon denied access of air and not rot. Over millions of years of sedimentary layers of the lower pressure of the upper turn into solid rock.
Water that seeps into sedimentary strata, contains minerals. Sometimes she washes them out of the sedimentary material. Under the weight of the upper sedimentary layers of the water displaced from the bottom. Minerals remain within and contribute to the bond of the sedimentary layers and their solidification into rock. These minerals are deposited even in the remains of plants and animals, filling the spaces between their cells, and sometimes even “replacing” their bones or shells. So obratimosti naturally grow in the stone and remain there Continue reading
Scientists unexpectedly made a discovery which in future may change the idea about the history of human evolution.
In China, paleontologists have discovered the remains of a probably still unknown species of people. These people lived in southern China from 11 to 14 thousand years ago.
Paleontologists have discovered the bones of at least five individuals. The remains of the first three were found in 1989 in the red Deer cave in Yunnan province.
Since then, scientists call them “people of the cave of red Deer”. Another skeleton was later found in the vicinity of the village Lonline in the Guangxi Autonomous region, reports the BBC .
In an article published in the journal PLoS One, paleontologists, however, write that while it is impossible to say whether these remains are still unknown of man or not.
A distinctive feature of “the man from deer cave” is the structure of the skull – cranial region: skull: round, low superciliary ridges. The face was small and flat, wide nose.
A distinctive feature of the “man from reindeer cave” was the structure of the skull Continue reading
No place in the world, contains the same number and diversity of fossils of the Jurassic period.
A team of paleontologists led by Dr. Juan Garcia Massini announced the opening of the largest Park of Jurassic period fossils in Patagonia in southern Argentina. The place of burial of the fossils, which were uncovered by recent erosion, it was discovered four years ago and until now was kept secret.
Dr Massini, a geologist from regional research centre reported that this plot is in the area of the massif the Deseado in the province of Santa Cruz in Patagonia.
“This is a unique discovery. Found bones and fossils of flora, micro – and macro-organisms. In addition, the organisms were buried very quickly by mud and fine earth, says Massini. – You can even see how the fungi, cyanobacteria, and worms were moved when they were still alive”.
Excavations are carried out on an area of about 60 thousand square kilometers, and the Massini amazed at how well preserved this area, which is 140 million years old. Continue reading