What is Australosphenida?
'''Australophenida''' are a clade of [[mammal]]s which has nearly entirely died out. Today, living specimen exist only in [[Australia]] and [[New Guinea]] with only five surviving species species, but fossils have been in [[Madagascar]] and [[Argentina]]. Species consist of the [[platypus]] and [[echidna]]s. This grouping includes the following animals: * [[Monotremata]] ** [[Kollikodontidae]] (''extinct'') *** ''[[Kollikodon]]'' ** [[Ornithorhynchidae]] (platypus) *** ''[[Obdurodon]]'' ** [[Steropodontidae]] (''extinct'') *** ''[[Steropodon]]'' *** ''[[Teinolophos]]'' ** [[Tachyglossidae]] (echidnas) [[category:Monotremes]]