A 520-million-year-old, five-eyed fossil reveals arthropod origin – Phys.org

Arthropods have been among the most successful animals on Earth since the Cambrian Period, about 520 million years ago. They are the most familiar and ubiquitous, and constitute nearly 80% of all animal species today, far more than any other animals.
But how did arthropods evolve, and what did their ancestors look like? These have been a major conundrum in animal evolution puzzling generations of scientists for more than a century.
Now, researchers from the Nanjing Institute of Geology and Paleontology…

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