Adenomus is a small genus of true toads with only three44 species endemic to Sri Lanka. Adenomus kandianus is now considered extinct. Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. ... Animalia redirects here. ... Typical Classes See below Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates. ... For other uses, see Amphibian (disambiguation). ... Suborders Archaeobatrachia Mesobatrachia Neobatrachia The Anura is the order of animals in the class Amphibia that includes frogs and toads. ... For other uses, see Toad (disambiguation). ... Edward Drinker Cope Edward Drinker Cope (July 28, 1840âApril 12, 1897) was an American paleontologist and comparative anatomist, as well as a noted herpetologist and ichthyologist. ... For other uses, see Toad (disambiguation). ...