| Oligocene bird of Australia(expression, geohistory, fauna, austria) |
| Andrewsornis(noun, geohistory, bird, oligocene) |
| Anhinga walterbolesi(expression, geohistory, bird, oligocene) |
| Anthropornis(noun, geohistory, bird, oligocene) |
| Archaeospheniscus(noun, geohistory, bird, oligocene) |
| Archaeospheniscus lopdelli(expression, geohistory, bird, oligocene) |
| Archaeospheniscus lowei(expression, geohistory, bird, oligocene) |
| Arthrodytes(noun, geohistory, bird, oligocene) |
| Australlus(noun, geohistory, bird, oligocene) |
| Australotadorna(noun, geohistory, bird, oligocene) |
| Barawertornis(noun, geohistory, bird, oligocene) |
| Bathornis(noun, geohistory, bird, oligocene) |
| Bathornithidae(noun, geohistory, bird, oligocene) |
| Caspiodontornis(noun, geohistory, bird, oligocene) |
| Collocalia buday(expression, geohistory, bird, oligocene) |
| Copepteryx(noun, geohistory, bird, oligocene) |
| Corvitalusoides(noun, geohistory, bird, oligocene) |
| Cruschedula(noun, geohistory, bird, oligocene) |
| Diomedeoididae(noun, geohistory, bird, oligocene) |
| Duntroonornis(noun, geohistory, bird, oligocene) |