New fossil deposits show complex animal groups predating the Cambrian Collection of fossils includes Ediacaran, Cambrian species, suggesting a transition. https://arstechnica.com/science/2026/04/new-fossil-deposits-show-complex-animal-groups-predating-the-cambrian/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social