Placoderm Nursery Diagram (IMAGE) Drexel University Caption An artist's depiction of what the Strud nursery ecosystem may have looked like, including the three different placoderm species discovered at the site. The species pictured, from top to bottom, Turrisaspis strudensis (left lateral view), Grossilepis rikiki (dorsal view), Phyllolepis undulata (dorsal view). Credit Image by Justine Jacquot-Hameon/PLOS-One. Usage Restrictions Credit as specified. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.