A scientific discovery has brought a 520-million-year-old larva back to life in ways previously thought impossible. For the ...

Focused on Cambrian fossils, the study reanimates a species long trapped in the pages of forgotten paleontology.

A remarkable fossilized larva has been discovered by scientists with its brain and guts still intact. The fossilized creature ...

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

Specific topics include arthropod origins and relationships to proto-arthropods, the evolution of segmentation, and current perspectives on relationships within the phylum. BIOL 3060 Invertebrate ...

An exploration of protoarthropod and arthropod diversity using live and preserved specimens of the major taxa including Tardigrada, Onychophora, Chelicerata, Crustacea, Myriapoda and Hexapoda.

"We are now sure she was a primitive marine arthropod, but her precise evolutionary relationships ... to figure out how they lived what they tell us about ancient life and evolution on Earth." ...

These familiar marine arthropods first arose about 545 million ... (a rodlike primitive backbone), a significant step in the evolution of vertebrates. Cambrian sediments found in Canada, Greenland ...

In arthropods, evolution has created a remarkably sophisticated class of imaging systems, with a wide-angle field of view, low aberrations, high acuity to motion and an infinite depth of field. A ...

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