கேள்வி: அன்செரிபார்மஸ் - மேற்கோள் நூல்கள் பற்றி தகவல் சொல்.
பதில்: * Agnolin, F. (2007) ''Brontornis burmeisteri'' Moreno & Mercerat, un Anseriformes (Aves) gigante del Mioceno Medio de Patagonia, Argentina. ''Revista del Museo Argentino de Ciencias Naturales''. 9:15–25. * Clarke, J. A. Tambussi, C. P. Noriega, J. I. Erickson, G. M. & Ketcham, R. A. (2005) Definitive fossil evidence for the extant avian radiation in the Cretaceous. ''Nature''. 433: 305–308. * Livezey, B. C. & Zusi, R. L. (2007) Higher-order phylogeny of modern birds (Theropoda, Aves: Neornithes) based on comparative anatomy. II. Analysis and discussion. ''Zoological Journal of the Linnen Society''. 149: 1–95. * Murray, P. F. & Vickers-Rich, P. (2004) Magnificent Mihirungs: The Colossal Flightless Birds of the Australian Dreamtime. ''Indiana University Press''.