1 Dollar - Elizabeth II 4th Portrait - Megafauna - Procoptodon

Procoptodon goliah, the giant short-faced kangaroo, stood roughly three metres tall and is estimated to have gone extinct around 46,000 years ago — likely a casualty of the combined pressures of human arrival in Australia and climatic aridification. This coin is part of Perth Mint's Australian Megafauna series, which used pad printing to apply colour directly onto the silver field, a technique Perth was actively refining during this period to achieve more nuanced tonal gradations than enamel inlay allows.