This smallest frog is found in Papua New Guinea by researchers from Louisiana State University (LSU), Chris Austin. Vertebrate animals (vertebrates) the smallest frog in the world has a size of about 7.7 new milimeter.

This Spesies beat Paedocypris progenetica, fish species from Indonesia are measuring more than eight milimeter.Austin who led a team of researchers from the U.S. along with LSU graduate student, Eric Rittmeyer, discovered the species in a three-month expedition in Papua Nugini.Spesies second, Paedophryne swiftorum, sized slightly larger than Paedophryne amauensis with an average body size of 8.5 millimeters.