Noun | 1. | ![]() animal order - the order of animals Elasmobranchii, Selachii, subclass Elasmobranchii, subclass Selachii - sharks; rays; dogfishes; skates family Pristidae, Pristidae - large primitive rays with elongated snouts family Rhinobatidae, Rhinobatidae - primitive rays with guitar-shaped bodies Dasyatidae, family Dasyatidae - sting rays family Myliobatidae, Myliobatidae - eagle rays family Mobulidae, Mobulidae - large rays lacking venomous spines: mantas family Rajidae, Rajidae - bottom-dwelling tropical rays: skates |