Analysts have revealed the initial known ancestor of humans – along with a vast range of other species. They articulate that fossilized traces of the 540-million-year-old creature are “exquisitely well preserved”.
The minuscule sea creature is the most primitive acknowledged stride on the evolutionary pathway that led to fish and ultimately to humans. The research team says that Saccorhytus is considered the most primitive example of a class of animals called “deuterostomes” which can be common forebears of a wide range of species, including vertebrates the backboned animals.
Saccorhytus engaged a millimeter in size, and is also thought to have lived between grains of sand on the sea bed. Saccorhytus was also covered with a fading, relatively flexible skin and muscles. It probably relocated around by wriggling.
The researchers were unable to find any evidence that the dog had a rectum, which suggests it used food and excreted from the same orifice. The study was carried away by a worldwide team of researchers, from the China, UK, and Germany. Between them was Prof. Claire Conway Morris, from the University of Cambridge.
As per the statement: “To the naked eye, the fossils we studied appear to be tiny black grains, but under the microscope the amount of detail was jaw-dropping.
“We feel that as an early on deuterostome this may signify the primitive beginnings of a very diverse range of species, including you. All deuterostomes had a common ancestor, and we feel that is what we should are looking at here. ”
Degan Shu, from Northwest University in Xi’An, Shaanxi Province, where the fossils were found, said: “Saccorhytus now provides us impressive insights in the very first stages of the evolution of a group that led to the fish, and finally, to us. Right up until now, the deuterostome types uncovered was from between 510 – 520 million in years past. These had already began to diversify into not merely the vertebrates, the group to which we and our ancestors belong and animals such as starfish and sea urchins.
Since they looked so different from one other, it was difficult for the researchers to determine what an earlier, common ancestor may have looked like. The research suggests that its body was symmetrical, the industry attribute inherited by many of its evolutionary descendants, including humans.
Saccorhytus was also covered with a small, relatively flexible skin and muscles, leading the research workers in conclusion that it shifted by contracting its muscles and got around by wriggling. The researchers say that its most hitting feature is its large mouth, relative to the rest of its body. They say that this probably ate by engulfing food particles, or even other creatures. Also interesting would be the conical structures on the body. These, the researchers suggest, might have allowed water that it ingested to escape therefore might have been a very early version of gills.