This ancient tadpole fossil is the oldest ever discovered ABC NewsThe oldest tadpole reveals evolutionary stability of the anuran life cycle Nature.comOldest tadpole on record was a Jurassic giant Livescience.comA rock in Argentina turns out to be the oldest tadpole fossil ever found Yahoo! VoicesFossil Reveals Oldest Known Tadpole That Grew to the Size of a Hot Dog The New York Times