Myliobatiformes is one of the four orders of batoids, cartilaginous fishes related to sharks. They were formerly included in the order Rajiformes, but more recent phylogenetic studies have shown the myliobatiforms to be a monophyletic group, and its more derived members evolved their highly flattened shapes independently of the skates. Classification Nelson's Fishes of the World arranges the Myliobatiformes as: Suborder Platyrhinoidei Family Platyrhinidae (thornbacks) Suborder Zanobatoidei Family Zanobatidae (panrays) Suborder Myliobatoidei (stingrays) Superfamily Hexatrygonoidea Family Hexatrygonidae (sixgill stingray) Superfamily Urolophoidea Family Plesiobatidae (deepwater stingray) Family Urolophidae (round stingrays) Superfamily Urotrygonoidea Family Urotrygonidae (American round stingrays) Superfamily Dasyatoidea Family Dasyatidae (whiptail stingrays
Myliobatiformes es uno de los cuatro órdenes de batoids, peces cartilaginosos relacionados con los tiburones. Se incluyeron anteriormente en el orden Rajiformes, pero estudios filogenéticos más recientes han demostrado que las myliobatiformes son un grupo monofilético, y sus miembros más derivados evolucionaron sus formas altamente aplanadas independientemente de los skates. Clasificación Nelson's Fishes of the World ordena a los Myliobatiformes como: Suborden Platyrhinoidei Family Platyrhinidae (tornos) Suborden Zanobatoidei Family Zanobatidae (panrays) Suborden Myliobatoidei (stingrays) Superfamily Hexatrygonoidea Family Hexatrygonidae (sixgilling) Superfamily Urolophoidea Family Plesiobatidae (deepwatering stray) Familia Urolophophidae (rowsraysraysrays) Superfamily Utronoididae Familia Utrygrotronidea (American Stygraysraysraids Familia Das