Aschliman, Neil C.; Nishida, Mutsumi; Miya, Masaki; Inoue, Jun G.; Rosana, Kerri M.; Naylor, Gavin J.P. (2012). „Body plan convergence in the evolution of skates and rays (Chondrichthyes: Batoidea)”. Molecular Phylogenetics and Evolution. 63 (1): 28—42. PMID22209858. doi:10.1016/j.ympev.2011.12.012.
Motta, P.J.; Wilga, C.D. (2001). „Advances in the study of feeding behaviors, mechanisms, and mechanics of sharks”. Environmental Biology of Fishes. 60 (1–3): 131—56. S2CID28305317. doi:10.1023/A:1007649900712.
Stumpf, Sebastian; Kriwet, Jürgen (2019). „A new Pliensbachian elasmobranch (Vertebrata, Chondrichthyes) assemblage from Europe, and its contribution to the understanding of late Early Jurassic elasmobranch diversity and distributional patterns”. PalZ. 93 (4): 637—658. doi:10.1007/s12542-019-00451-4.
Douady, C.J.; Dosay, M.; Shivji, M.S.; Stanhope, M.J. (2003). „Molecular phylogenetic evidence refuting the hypothesis of Batoidea (rays and skates) as derived sharks”. Molecular Phylogenetics and Evolution. 26 (2): 215—221. PMID12565032. doi:10.1016/S1055-7903(02)00333-0.
Faria, Vicente V.; McDavitt, Matthew T.; Charvet, Patricia; Wiley, Tonya R.; Simpfendorfer, Colin A.; Naylor, Gavin J.P. (2013). „Species delineation and global population structure of critically endangered sawfishes (Pristidae)”. Zoological Journal of the Linnean Society. 167: 136—164. doi:10.1111/j.1096-3642.2012.00872.x.
„Reproduction overall”. Risk Section, Bedford Institute of Oceanography & Marine Fish Species. Canadian Shark Research Lab. Skates and rays of Atlantic Canada. Northwest Atlantic Fisheries Center. Архивирано из оригинала 2015-01-16. г. Приступљено 27. 5. 2012.CS1 одржавање: Формат датума (веза)
Aschliman, Neil C.; Nishida, Mutsumi; Miya, Masaki; Inoue, Jun G.; Rosana, Kerri M.; Naylor, Gavin J.P. (2012). „Body plan convergence in the evolution of skates and rays (Chondrichthyes: Batoidea)”. Molecular Phylogenetics and Evolution. 63 (1): 28—42. PMID22209858. doi:10.1016/j.ympev.2011.12.012.
Douady, C.J.; Dosay, M.; Shivji, M.S.; Stanhope, M.J. (2003). „Molecular phylogenetic evidence refuting the hypothesis of Batoidea (rays and skates) as derived sharks”. Molecular Phylogenetics and Evolution. 26 (2): 215—221. PMID12565032. doi:10.1016/S1055-7903(02)00333-0.
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Motta, P.J.; Wilga, C.D. (2001). „Advances in the study of feeding behaviors, mechanisms, and mechanics of sharks”. Environmental Biology of Fishes. 60 (1–3): 131—56. S2CID28305317. doi:10.1023/A:1007649900712.
„Reproduction overall”. Risk Section, Bedford Institute of Oceanography & Marine Fish Species. Canadian Shark Research Lab. Skates and rays of Atlantic Canada. Northwest Atlantic Fisheries Center. Архивирано из оригинала 2015-01-16. г. Приступљено 27. 5. 2012.CS1 одржавање: Формат датума (веза)