கேள்வி: பெலிகனிபார்மசு - உசாத்துணை என்பது என்ன?
பதில்: * Bourdon, Estelle; Bouya, Baâdi & Iarochene, Mohamed (2005): Earliest African neornithine bird: A new species of Prophaethontidae (Aves) from the Paleocene of Morocco. ''Society of Vertebrate Paleontology'' 25(1): 157–170. Digital Object Identifier: 10.1671/0272-4634(2005)025[0157:EANBAN]2.0.CO;2 [http://www.bioone.org/perlserv/?request=get-abstract&doi=10.1671%2F0272-4634(2005)025%5B0157%3AEANBAN%5D2.0.CO%3B2 HTML abstract] * Mayr, Gerald (2003): The phylogenetic affinities of the Shoebill (''Balaeniceps rex''). ''Journal für Ornithologie'' 144(2): 157–175. [English with German abstract] [http://doi.org/10.1046/j.1439-0361.2003.03002.x HTML abstract] * Mortimer, Michael (2004): The Theropod Database: [http://archosaur.us/theropoddatabase/Phylogeny%20of%20Taxa.html Phylogeny of taxa] . Retrieved 2013-MAR-02.