The <i>Alalcomenaeus</i> Fossil (IMAGE) University of Arizona Caption This is the fossil of the megacheiran Alalcomenaeus, a distant relative of scorpions and spiders. Credit N. Strausfeld et al. Usage Restrictions This visual may only be used in conjunction with reporting/posting of this news release. Image/video credit must be included exactly as indicated. 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.