Wilson, Jonathan P., White, Joseph D., DiMichele, William A., Hren, Michael T., Poulsen, Christopher J., McElwain, Jennifer C., and Montañez, Isabel P. 2015. "Reconstructing extinct plant water use for understanding vegetation-climate feedbacks: methods, synthesis and a case study using the Paleozoic era medullosan seed ferns." Paleontological Society Papers. 21:167–195. https://doi.org/10.1017/S1089332600003004