Manuel Schweizer, Ole Seehausen and Stefan T. Hertwig (2011). “Macroevolutionary patterns in the diversification of parrots: effects of climate change, geological events and key innovations”. Journal of Biogeography. 38: 2176–2194. doi:10.1111/j.1365-2699.2011.02555.x.
Leo Joseph, Alicia Toon, Erin E. Schirtzinger, Timothy F. Wright (2011). “Molecular systematics of two enigmatic genera Psittacella and Pezoporus illuminate the ecological radiation of Australo-Papuan parrots (Aves: Psittaciformes)”. Molecular Phylogenetics and Evolution. 59 (3): 675–684. doi:10.1016/j.ympev.2011.03.017. PMID21453777.Quản lý CS1: nhiều tên: danh sách tác giả (liên kết)
Schweizer, M.; Seehausen, O.; Güntert, M.; Hertwig, S. T. (2009). “The evolutionary diversification of parrots supports a taxon pulse model with multiple trans-oceanic dispersal events and local radiations”. Molecular Phylogenetics and Evolution. online (3): 984–94. doi:10.1016/j.ympev.2009.08.021. PMID19699808.
de Kloet, RS; de Kloet SR (2005). “The evolution of the spindlin gene in birds: Sequence analysis of an intron of the spindlin W and Z gene reveals four major divisions of the Psittaciformes”. Molecular Phylogenetics and Evolution. 36 (3): 706–721. doi:10.1016/j.ympev.2005.03.013. PMID16099384.
Leo Joseph, Alicia Toon, Erin E. Schirtzinger, Timothy F. Wright (2011). “Molecular systematics of two enigmatic genera Psittacella and Pezoporus illuminate the ecological radiation of Australo-Papuan parrots (Aves: Psittaciformes)”. Molecular Phylogenetics and Evolution. 59 (3): 675–684. doi:10.1016/j.ympev.2011.03.017. PMID21453777.Quản lý CS1: nhiều tên: danh sách tác giả (liên kết)
Schweizer, M.; Seehausen, O.; Güntert, M.; Hertwig, S. T. (2009). “The evolutionary diversification of parrots supports a taxon pulse model with multiple trans-oceanic dispersal events and local radiations”. Molecular Phylogenetics and Evolution. online (3): 984–94. doi:10.1016/j.ympev.2009.08.021. PMID19699808.
de Kloet, RS; de Kloet SR (2005). “The evolution of the spindlin gene in birds: Sequence analysis of an intron of the spindlin W and Z gene reveals four major divisions of the Psittaciformes”. Molecular Phylogenetics and Evolution. 36 (3): 706–721. doi:10.1016/j.ympev.2005.03.013. PMID16099384.