J. Andréz Lopéz, Julie A. Ryburn, Olivier Fedrigo & Gavin J. P. Naylor: Phylogeny of sharks of the family Triakidae (Carcharhiniformes) and its implications for the evolution of carcharhiniform placental viviparity. Molecular Phylogenetics and Evolution, 2006, 40. vsk, s. 50-60. Artikkelin verkkoversio. Viitattu 20.2.2011. (englanniksi) (Arkistoitu – Internet Archive)
J. Andréz Lopéz, Julie A. Ryburn, Olivier Fedrigo & Gavin J. P. Naylor: Phylogeny of sharks of the family Triakidae (Carcharhiniformes) and its implications for the evolution of carcharhiniform placental viviparity. Molecular Phylogenetics and Evolution, 2006, 40. vsk, s. 50-60. Artikkelin verkkoversio. Viitattu 20.2.2011. (englanniksi) (Arkistoitu – Internet Archive)