Two-seeded cones of probable gnetalean affinity from the Morrison Formation (Late Jurassic) of Utah and Colorado, USADOI: info:10.35535/acpa-2022-0006Institute of Botany, Polish Academy of Science77–92
Manchester, Steven R., Zhang, Xiaoqing, Hotton, Carol L., Wing, Scott L., and Crane, Peter R. 2022. "Two-seeded cones of probable gnetalean affinity from the Morrison Formation (Late Jurassic) of Utah and Colorado, USA." Acta Palaeobotanica, 77–92. https://doi.org/10.35535/acpa-2022-0006.