Nel, André, Gaozhe Ji, Jian Gao, and Diying Huang. “A New Griffenfly Genus and Species from the Early Pennsylvanian of the Xiaheyan Locality (Ningxia, China) (Insecta: Odonatoptera)”. European Journal of Taxonomy 925, no. 1 (March 5, 2024): 67–75. Accessed April 24, 2026. https://ejt.sandbox.publicknowledgeproject.org/index.php/ejt/article/view/2451.