Cambrian animals would have needed more oxygen ... into Ediacaran oceans by studying oxygen-depleted regions in modern seas around the globe. He suggests that biologists have conventionally ...

The Cambrian seas were a chaotic laboratory, and Opabinia was one of its most memorable inventions. Opabinia’s fossilized remains were first uncovered in the early 20th century, but their true ...

but it could be related to how or where it lived—maybe hanging out in low-oxygen environments in the lively Cambrian seas, or leading an especially active lifestyle. Its unique shape ...

Just one look at its alien features and you’ll understand why scientists and fossil hunters alike have been captivated by this spectacular, almost monstrous, ruler of ancient seas. The Cambrian ...

Amos The iconic arthropods of the Cambrian were the trilobites, which left a huge number of fossils. Trilobites had flattened, segmented, plated bodies that helped to protect them in seas that ...

Compared to other creatures of the Cambrian seas, Synophalos xynos seems rather plain. It was not a living pincushion like Wiwaxia, its body did not resemble a walking cactus like Diania, ...

A newly discovered arthropod fossil, Mosura fentoni, has preserved eyes, nerves, and blood vessels - a rare insight into early arthropods.

During the early Cambrian, shallow seas repeatedly advanced and retreated across the North American continent, gradually eroding away surface rock to uncover fresh basement rock from within the crust.

A new filter-feeding giant that trolled the Cambrian seas has been unearthed in Greenland. The species, dubbed Tamisiocaris borealis, used large, bristly appendages on its body to rake in tiny ...

500 million years ago, the meter-long Anomalocaris roamed the Cambrian seas. Researchers once thought that Anomalocaris crushed trilobites with their teeth, but recent fossil analysis suggests ...

Instead, he thinks Burgessomedusa joins a swarm of jellyfish species that patrolled Cambrian seas. “It really adds to the compelling body of evidence indicating that medusozoans, which are a ...