If paleontologists find a steep slope, folded sedimentary rocks, full of fossils, what they can say about their interaction?
Rocks, forming in some places, differ substantially from the others. Their specific characteristics are called sedimentary facies. It happens today, just like millions of years ago. Rocks at different sites can have very different composition, even if their accumulation occurred in the same period of time. The same applies to those included in them the petrified spines.
Fossils in some places is often very different from that of fossils in other places due to the environmental conditions in which the sediments. Just like ocean fish, shellfish, and mammals that live at different depths, the fossils found in various sedimentary deposits of ancient seas, characteristic of the marine environment. The stratigraphic arrangement of the sedimentary rock often shows the species and a sediment gradient. Because ultimately everything falls to the bottom and covered by sediment, even species that lived at a great distance from each other (in depth), can be close to each other in the layer of sedimentary rocks. Continue reading
For a long time it was believed that the inhabitants of Easter island, or Rapa Nui (the local name for the Islands), were the victims of military conflict. The only thing left is the mysterious stone statues and a set of triangular shards of volcanic glass, which, presumably, was used as a weapon. However, it was different, believe scientists from the University of Binghamton in new York (USA).
In their opinion pieces, called “meta a”, actually served as tools. The findings of archaeologists refute existing theory about the bloody battle that destroyed the civilization on the island. New assumptions based on the results of the analysis of over 400 samples “mate and” collected on Rapa Nui.
According to the head of research, Professor Carl Lipo, a careful study of the fragments shows that they differ in shape, unlike the model spearheads. Comparing the samples from Easter island with the fragments of weapons found in Europe and around the world, you will notice that all the elements of the latter have the same carefully designed and tested the form, says the scientist. And she, in his opinion, was necessary that weapons are guaranteed to reach the desired goal. Continue reading
The researchers found in Asia, new remains of human ancestors, suggesting that our predecessors very quickly settled on the planet and Asia was one of the first places where you headed migration flows. New remains of skulls of ancient people were found in the so-called “Cave of the monkeys” in Laos.
It is known that anatomically modern humans emerged about 200,000 years ago in Africa, but when and how they settled the planet, remains unclear. Archaeological evidence and genetic evidence indicates that the ancestors of the people fast enough to move out of Africa and in South Asia they were already about 60 000 years ago. However, in South Asia, which experts believe was first inhabited, the remains of that period is almost gone. Partly because of the warm and humid climate, which destroyed them.
This time, however, specialists found such remains in the Lao “monkey Cave”, located in the Northern part of the country. For the first time about the anthropological value of the cave began back in 2009, when there were found the first remains. But now experts have found almost complete set of skeletal remains for analysis. Continue reading