The first complex beings

2000/08/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria

• Paleontologia
• Arkeologia

Researchers from the Massachusetts Institute of Technology, the Moscow Institute of Paleontology and the California Institute of Technology have managed to consolidate the age of the first complex animals to appear on Earth. These beings were similar to worms. Remains found in Russia. Studies on local volcanic ash indicate that worms were 555 million years ago. Earthworm-shaped beings are thought to move over the seabed sediments. For this, for example, they needed a complex morphology, a rigid body or an intestine. In the same place there is also a fossil called Kimbella, which can be a primitive mollusk. It has only been found in Russia and Australia. According to the researchers, this type of complex beings began to appear 555 million years ago and the first pluricellular beings, before 600 million years.