Chambers, K. L., and G. O. Poinar, Jr. “Reinterpretation of the Mid-Cretaceous Fossil Flower Endobeuthos Paleosum As a Capitular, Unisexual Inflorescence of Proteaceae”. Journal of the Botanical Research Institute of Texas, vol. 17, no. 2, Nov. 2023, pp. 449-56, doi:10.17348/jbrit.v17.i2.1324.