Poinar, Jr., George O., Kenton L. Chambers, and Fernando E. Vega. “Tropidogyne Euthystyla Sp. Nov., a New Small-Flowered Addition to the Genus from Mid-Cretaceous Myanmar Amber”. Journal of the Botanical Research Institute of Texas 15, no. 1 (July 23, 2021): 113-119. Accessed January 27, 2022. https://journals.brit.org/jbrit/article/view/1053.