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Glaucostegidae
family, sharks & rays
Nucleotide Protein
Bathytoshia
genus, sharks & rays
Pseudobatos
Hypanus
Brevitrygon
Telatrygon
Diplobatis
Urolophoidea
superfamily, sharks & rays
Mobulinae
subfamily, sharks & rays
Myliobatidae
Pteroplatytrygon
Glaucostegus
Trygonoptera
Batoidea
(rays), superorder, sharks & rays
Torpediniformes
order, sharks & rays
Rhinopristiformes
Aptychotrema
Sympterygia
Rioraja
Notoraja
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