科学家在54亿年前的岩石中发现了海绵化学化石,证实在Cambrian爆炸之前就已经存在海绵。 Scientists found sponge chemical fossils in 541-million-year-old rocks, confirming sponges existed before the Cambrian explosion.

科学家在来自阿曼、印度和西伯利亚的54亿年前的岩石中发现了化学化石,这强烈表明海绵是地球上第一批动物之一。 Scientists have found chemical fossils in 541-million-year-old rocks from Oman, India, and Siberia that strongly indicate sea sponges were among Earth’s first animals. 在岩石中发现了罕见的基,包括独特的C30和C31基,实验室测试证实只有海绵产生的形式与古代样本相匹配. Rare steranes, including C30 and C31 sterols unique to demosponges, were identified in the rocks, with lab tests confirming only sponge-produced forms matched the ancient samples. 这证实了一种理论,即海绵存在于Ediacaran时期,在Cambrian爆炸之前,是没有骨骼的简单、软体生物。 This supports the theory that sponges existed during the Ediacaran period, before the Cambrian explosion, and were simple, soft-bodied organisms without skeletons. 这一发现加强了早先的证据,突出了分子化石在揭示早期动物生命方面的作用。 The discovery strengthens earlier evidence and highlights the role of molecular fossils in revealing early animal life.