The Eungella gastric-brooding frog is classified as Extinct (EX), there is no reasonable doubt that the last individual has died.
Eungella Gastric-Brooding Frog (Rheobatrachus vitellinus), which is now thought extinct, and the Eungella Torrent Frog (Taudactylus eungellensis), which later reappeared in a few small populations. In the PLoS Biology study, Retallick et al. More