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Fossil record pushed back 70 million years

The discovery of 650-million-year-old sea sponge fossil has pushed the fossil record for life on earth back 70 million years. The prior oldest known hard-bodied animals were reef-dwelling organisms called Namacalathus, which date to approximately 550 million years ago. Disputed remains for other possible soft-bodied animals date to between 577

Fossil record pushed back 1.5 billion years

Newly discovered fossils in west Africa are pushing back the dawn of multicellular life on earth by 1.5 billion years. Up to now, conventional scientific wisdom held that the planet was populated only by single-celled microbes until the so-called Cambrian explosion, a major surge of biodiversity that began some