3D preservation of trilobite soft tissues sheds light on convergent evolution of defensive enrollment

They'd been in the collections of the Harvard Museum of Comparative Zoology (MCZ) since the 1870s when they were first discovered. Nestled in among the largest collection of trilobites, the unique fossils rested in drawers until 145 years later when Sarah Losso, Ph.D. candidate in the Department of Organismic and Evolutionary Biology (OEB) at Harvard, began combing through the collection of trilobites as part of her dissertation.