Pigg, K.; DeVore, M.; Wojciechowski, M. (2008). Paleosecuridaca curtisii gen. et sp. nov., Securidaca‐like samaras (Polygalaceae) from the Late Paleocene of North Dakota and their significance to the divergence of families within the Fabales. International Journal of Plant Sciences. 169(9): 1304-1313.
Paleosecuridaca curtisii gen. et sp. nov., Securidaca‐like samaras (Polygalaceae) from the Late Paleocene of North Dakota and their significance to the divergence of families within the Fabales