WANG, Q.; ZHAO, Z.; WANG, X.; LI, N.; ZOU, S. A new form of Elongatoolithidae, Undulatoolithus pengi oogen. et oosp. nov. from Pingxiang, Jiangxi, China. Zootaxa, Auckland, New Zealand, v. 3746, n. 1, p. 194–200, 2013. DOI: 10.11646/zootaxa.3746.1.9. Disponível em: https://mapress.com/zt/article/view/zootaxa.3746.1.9. Acesso em: 24 apr. 2025.