In many blocks on the Earth, the boundary between the Phanerozoic and Precambrian is consistently characterized by a huge sedimentary gap—the Great Unconformity. Recently, researchers from the Nanjing ...

A creature with a massive head shield, sand-raking claws and a circular tooth-filled mouth swept across the ocean bottom half-a-billion years ago, hoovering up prey like a living Roomba. Measuring ...

Ancient fossils have shed new light on a type of sea worm linking it to the time of an evolutionary explosion that gave rise to modern animal life. Researchers at Durham University, UK, and Northwest ...

Scientists have uncovered a wealth of well-preserved fossils in China from the early Cambrian Period, representing 101 species so far, over half of which have never been described before. In 1909, ...

A newly described species from the Burgess Shale had three eyes, clawed limbs, and a tail full of gills—plus internal organs preserved in stunning detail. Reading time 3 minutes A newly described ...

The most recent 12% of time on Earth is a striking anomaly when compared with the great bulk of our planet’s evolution. After 3 billion years or more of Earth as a microbial world, cells found ways to ...

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