Poinar, Jr., George O., and Kenton L. Chambers. “Cyathitepala Papillosa Gen. Et Sp. Nov., a Mid-Cretaceous Fossil Flower from Myanmar Amber With Valvate Anthers”. Journal of the Botanical Research Institute of Texas 14, no. 2 (December 7, 2020): 351–358. Accessed April 26, 2024. https://journals.brit.org/jbrit/article/view/1013.