The new study found the characteristics in Helmetia expansa differed from previous studies. It is said that these species had ...

Researchers formally describe Helmetia expansa, offering new insights into its anatomy, behavior and evolutionary relationships.

For over a century, the Cambrian arthropod Helmetia expansa remained a mystery. Discovered by paleontologist Charles ...

Environmental stress in evolution can be reframed as a powerful engine of innovation, not simply a barrier to survival.

For over a century, the Cambrian arthropod Helmetia expansa remained a mystery. Discovered by paleontologist Charles Doolittle Walcott in 1918, it was ...

Fossils from China’s Turpan-Hami Basin reveal it was a rare land refuge during the end-Permian extinction, with fast ...

the most severe biological crisis since the Cambrian period. The discovery, led by Prof. Liu Feng, from the Nanjing Institute of Geology and Paleontology (NIGPAS) of the Chinese Academy of ...

the most severe biological crisis since the Cambrian period. The research, published in Science Advances, challenges the widely held view that terrestrial ecosystems suffered the same catastrophic ...

This was also the time when animal diversity boomed, in what is known as the "Cambrian explosion." My team's new research, published in Nature Communications, suggests that these drastic oxygen ...

The animals inhabited the ocean floor 505 million years ago, near the end of the Cambrian Period. "Most of the phyla we know today we can see already in the Cambrian and the animals of the Burgess ...

For over a century, scientists have been puzzled by a mysterious fossil called Helmetia expansa, an ancient arthropod from ...