Researchers in Australia have discovered a complete skull fossil of the Ice Age bird Genyornis newtoni near Lake Callabonna.

Genyornis newtoni, also known as the 'giga-goose,' was a thunder bird species that stood taller than humans and weighed up to 529 pounds.

The bird had a unique goose-like face and a short skull adapted for consuming soft fruits and plants, with a wide triangular bony shield on the upper bill possibly used for sexual displays.

The discovery has provided new insights into the bird's appearance and biology, clarifying the lineage of dromornithids and placing them within the waterfowl order Anseriformes.

The skull reconstruction reveals a blend of features from geese, parrots, and landfowl, enhancing understanding of these extinct giants and their ecological impact.

Further fossil discoveries may offer additional insights into the thunder birds and their habitat, highlighting the importance of ongoing research in this area.