Engel, Michael S., and David A Grimaldi. “Whipspiders (Arachnida: Amblypygi) in Amber from the Early Eocene and Mid-Cretaceous, Including Maternal Care”. Novitates Paleoentomologicae, no. 9 (August 6, 2014): 1–17. Accessed April 3, 2025. https://journals.ku.edu/paleoent/article/view/4765.