Ortega-Andrade, H. Mauricio, et al. “A Time Relic: A New Species of Dwarf Boa, Tropidophis Bibron, 1840 (Serpentes: Amerophidia), from the Upper Amazon Basin”. European Journal of Taxonomy, vol. 854, no. 1, Dec. 2022, pp. 1-107, doi:10.5852/ejt.2022.854.2021.