An Ancient Origin for the Enigmatic Flat-Headed Frogs (Bombinatoridae: Barbourula) from the Islands of Southeast Asia Blackburn, David C. ; Bickford, David P. ; Diesmos, Arvin C. ; Iskandar, Djoko T. ; Brown, Rafe M. Abstract Publication: PLoS ONE Pub Date: August 2010 DOI: 10.1371/journal.pone.0012090 Bibcode: 2010PLoSO...512090B