FLECK, G.; WALLER, A.; SERAFIN, J.; NEL, A. The oldest Calopterygidae in the Eocene Baltic amber (Odonata: Zygoptera). Zootaxa, Auckland, New Zealand, v. 1985, n. 1, p. 52–56, 2009. DOI: 10.11646/zootaxa.1985.1.5. Disponível em: https://mapress.com/zt/article/view/zootaxa.1985.1.5. Acesso em: 5 apr. 2025.