A new look at fossils from the Cambrian Period around 500 million years ago has revealed that some of the earliest animals spent time on mudflats that were sometimes exposed to the air – a find that c ...

All animal evolution ... kit enabled an unprecedented period of evolutionary experimentation -- and competition. Many forms seen in the fossil record of the Cambrian disappeared without trace.

Learn more about a time period marked by ... of evolution ever known. The Cambrian Explosion saw an incredible diversity of life emerge, including many major animal groups alive today.

dramatically. It was the time of the Cambrian Explosion, an eruption of life when Earth’s very first animals began appearing in the fossil record — the ancestors of all major animal groups ...

Some of the best information about early animals comes from fossils dating back to the Cambrian period, which started around 541 million years ago. During this time, Earth experienced a burst of ...

Most fossils of bilaterian animals are younger, first appearing in the Cambrian period.’ To find such tiny fossils the team used X-ray microtomography, a special technique that uses X-rays to create a ...

Misra noticed a fossil-rich slab of mudstone at Newfoundland ... Arthropods were the most diverse animal group in the Cambrian period and the Ordovician period that followed.

Scientists have unraveled the evolutionary history of the ventral nerve cord in ecdysozoan animals ... analysed the fossils from key Cambrian deposits. The fossils included Scalidophora, a ...

Then, at the beginning of the Cambrian Period, life opened its eyes ... generations of palaeontologists have now studied Chengjiang's fossils, uncovering the physiology of Cambrian animals in stunning ...

The Penn Dixie carpoids are a ‘Lazarus taxon:’ an animal that disappears from the fossil record, then reappears much later. Carpoids first appeared during the Middle Cambrian Period some 500 ...